From 46c3d7fc63d60116d0370b8e39af3255c97f6276 Mon Sep 17 00:00:00 2001
From: tb <tb@openbsd.org>
Date: Sun, 23 Oct 2022 06:00:23 +0000
Subject: [PATCH] Drop RCS ids in upstream zlib source

We're not maintaining a this as a fork, it's upstream source with a handful
of patches. Thus, the RCS ids aren't particularly useful or important. They
are a bit of a maintenance burden and generate noise in diffs.

ok kn, no objection millert, "kill" guess who
---
 lib/libz/adler32.c      | 1 -
 lib/libz/compress.c     | 1 -
 lib/libz/crc32.c        | 1 -
 lib/libz/crc32.h        | 2 --
 lib/libz/deflate.c      | 1 -
 lib/libz/deflate.h      | 2 --
 lib/libz/gzclose.c      | 1 -
 lib/libz/gzguts.h       | 2 --
 lib/libz/gzlib.c        | 1 -
 lib/libz/gzread.c       | 1 -
 lib/libz/gzwrite.c      | 1 -
 lib/libz/infback.c      | 1 -
 lib/libz/inffast.c      | 1 -
 lib/libz/inffast.h      | 2 --
 lib/libz/inffixed.h     | 2 --
 lib/libz/inflate.c      | 1 -
 lib/libz/inflate.h      | 2 --
 lib/libz/inftrees.c     | 1 -
 lib/libz/inftrees.h     | 2 --
 lib/libz/trees.c        | 1 -
 lib/libz/trees.h        | 2 --
 lib/libz/uncompr.c      | 1 -
 lib/libz/zconf.h        | 2 --
 lib/libz/zlib.h         | 2 --
 lib/libz/zutil.c        | 1 -
 lib/libz/zutil.h        | 2 --
 sys/lib/libz/adler32.c  | 1 -
 sys/lib/libz/compress.c | 1 -
 sys/lib/libz/crc32.c    | 1 -
 sys/lib/libz/crc32.h    | 2 --
 sys/lib/libz/deflate.c  | 1 -
 sys/lib/libz/deflate.h  | 2 --
 sys/lib/libz/infback.c  | 1 -
 sys/lib/libz/inffast.c  | 1 -
 sys/lib/libz/inffast.h  | 2 --
 sys/lib/libz/inffixed.h | 2 --
 sys/lib/libz/inflate.c  | 1 -
 sys/lib/libz/inflate.h  | 2 --
 sys/lib/libz/inftrees.c | 1 -
 sys/lib/libz/inftrees.h | 2 --
 sys/lib/libz/trees.c    | 1 -
 sys/lib/libz/trees.h    | 2 --
 sys/lib/libz/zconf.h    | 2 --
 sys/lib/libz/zlib.h     | 2 --
 sys/lib/libz/zutil.c    | 1 -
 sys/lib/libz/zutil.h    | 2 --
 46 files changed, 67 deletions(-)

diff --git a/lib/libz/adler32.c b/lib/libz/adler32.c
index 74a2000016d..8d520cd9e37 100644
--- a/lib/libz/adler32.c
+++ b/lib/libz/adler32.c
@@ -1,4 +1,3 @@
-/*	$OpenBSD: adler32.c,v 1.7 2021/07/04 14:24:49 tb Exp $ */
 /* adler32.c -- compute the Adler-32 checksum of a data stream
  * Copyright (C) 1995-2011, 2016 Mark Adler
  * For conditions of distribution and use, see copyright notice in zlib.h
diff --git a/lib/libz/compress.c b/lib/libz/compress.c
index d42a7b2caf2..aad3e346e76 100644
--- a/lib/libz/compress.c
+++ b/lib/libz/compress.c
@@ -1,4 +1,3 @@
-/*	$OpenBSD: compress.c,v 1.8 2022/10/20 15:35:31 tb Exp $ */
 /* compress.c -- compress a memory buffer
  * Copyright (C) 1995-2005, 2014, 2016 Jean-loup Gailly, Mark Adler
  * For conditions of distribution and use, see copyright notice in zlib.h
diff --git a/lib/libz/crc32.c b/lib/libz/crc32.c
index e2bc3c08c80..0796b0f4c84 100644
--- a/lib/libz/crc32.c
+++ b/lib/libz/crc32.c
@@ -1,4 +1,3 @@
-/*	$OpenBSD: crc32.c,v 1.12 2022/10/20 15:35:31 tb Exp $ */
 /* crc32.c -- compute the CRC-32 of a data stream
  * Copyright (C) 1995-2022 Mark Adler
  * For conditions of distribution and use, see copyright notice in zlib.h
diff --git a/lib/libz/crc32.h b/lib/libz/crc32.h
index e262284cb1e..137df68d616 100644
--- a/lib/libz/crc32.h
+++ b/lib/libz/crc32.h
@@ -1,5 +1,3 @@
-/*	$OpenBSD: crc32.h,v 1.4 2022/05/08 14:04:21 tb Exp $ */
-
 /* crc32.h -- tables for rapid CRC calculation
  * Generated automatically by crc32.c
  */
diff --git a/lib/libz/deflate.c b/lib/libz/deflate.c
index aacedc9ada8..b586eb07220 100644
--- a/lib/libz/deflate.c
+++ b/lib/libz/deflate.c
@@ -1,4 +1,3 @@
-/*	$OpenBSD: deflate.c,v 1.17 2022/10/20 15:35:31 tb Exp $ */
 /* deflate.c -- compress data using the deflation algorithm
  * Copyright (C) 1995-2022 Jean-loup Gailly and Mark Adler
  * For conditions of distribution and use, see copyright notice in zlib.h
diff --git a/lib/libz/deflate.h b/lib/libz/deflate.h
index d1639ca1921..c35b6f8e4b9 100644
--- a/lib/libz/deflate.h
+++ b/lib/libz/deflate.h
@@ -1,5 +1,3 @@
-/*	$OpenBSD: deflate.h,v 1.13 2022/10/20 15:35:31 tb Exp $ */
-
 /* deflate.h -- internal compression state
  * Copyright (C) 1995-2018 Jean-loup Gailly
  * For conditions of distribution and use, see copyright notice in zlib.h
diff --git a/lib/libz/gzclose.c b/lib/libz/gzclose.c
index b2b4188ef90..caeb99a3177 100644
--- a/lib/libz/gzclose.c
+++ b/lib/libz/gzclose.c
@@ -1,4 +1,3 @@
-/*	$OpenBSD: gzclose.c,v 1.1 2021/07/04 14:24:49 tb Exp $ */
 /* gzclose.c -- zlib gzclose() function
  * Copyright (C) 2004, 2010 Mark Adler
  * For conditions of distribution and use, see copyright notice in zlib.h
diff --git a/lib/libz/gzguts.h b/lib/libz/gzguts.h
index 707337b815a..57faf37165a 100644
--- a/lib/libz/gzguts.h
+++ b/lib/libz/gzguts.h
@@ -1,5 +1,3 @@
-/*	$OpenBSD: gzguts.h,v 1.3 2022/05/08 14:04:22 tb Exp $ */
-
 /* gzguts.h -- zlib internal header definitions for gz* operations
  * Copyright (C) 2004-2019 Mark Adler
  * For conditions of distribution and use, see copyright notice in zlib.h
diff --git a/lib/libz/gzlib.c b/lib/libz/gzlib.c
index 60d03c62bac..55da46a453f 100644
--- a/lib/libz/gzlib.c
+++ b/lib/libz/gzlib.c
@@ -1,4 +1,3 @@
-/*	$OpenBSD: gzlib.c,v 1.3 2022/10/20 15:35:31 tb Exp $ */
 /* gzlib.c -- zlib functions common to reading and writing gzip files
  * Copyright (C) 2004-2019 Mark Adler
  * For conditions of distribution and use, see copyright notice in zlib.h
diff --git a/lib/libz/gzread.c b/lib/libz/gzread.c
index a1a19259d4f..dd77381596c 100644
--- a/lib/libz/gzread.c
+++ b/lib/libz/gzread.c
@@ -1,4 +1,3 @@
-/*	$OpenBSD: gzread.c,v 1.3 2022/10/20 15:35:31 tb Exp $ */
 /* gzread.c -- zlib functions for reading gzip files
  * Copyright (C) 2004-2017 Mark Adler
  * For conditions of distribution and use, see copyright notice in zlib.h
diff --git a/lib/libz/gzwrite.c b/lib/libz/gzwrite.c
index b4f05daae80..eb8a0e5893f 100644
--- a/lib/libz/gzwrite.c
+++ b/lib/libz/gzwrite.c
@@ -1,4 +1,3 @@
-/*	$OpenBSD: gzwrite.c,v 1.3 2022/10/20 15:35:31 tb Exp $ */
 /* gzwrite.c -- zlib functions for writing gzip files
  * Copyright (C) 2004-2019 Mark Adler
  * For conditions of distribution and use, see copyright notice in zlib.h
diff --git a/lib/libz/infback.c b/lib/libz/infback.c
index 659c2dfaf20..0576faecf70 100644
--- a/lib/libz/infback.c
+++ b/lib/libz/infback.c
@@ -1,4 +1,3 @@
-/*	$OpenBSD: infback.c,v 1.9 2022/10/20 15:35:31 tb Exp $ */
 /* infback.c -- inflate using a call-back interface
  * Copyright (C) 1995-2022 Mark Adler
  * For conditions of distribution and use, see copyright notice in zlib.h
diff --git a/lib/libz/inffast.c b/lib/libz/inffast.c
index 310ae9543d0..db0424db48a 100644
--- a/lib/libz/inffast.c
+++ b/lib/libz/inffast.c
@@ -1,4 +1,3 @@
-/*	$OpenBSD: inffast.c,v 1.10 2022/05/08 14:04:22 tb Exp $ */
 /* inffast.c -- fast decoding
  * Copyright (C) 1995-2017 Mark Adler
  * For conditions of distribution and use, see copyright notice in zlib.h
diff --git a/lib/libz/inffast.h b/lib/libz/inffast.h
index cb807872398..e5c1aa4ca8c 100644
--- a/lib/libz/inffast.h
+++ b/lib/libz/inffast.h
@@ -1,5 +1,3 @@
-/*	$OpenBSD: inffast.h,v 1.6 2021/07/04 17:41:23 tb Exp $ */
-
 /* inffast.h -- header to use inffast.c
  * Copyright (C) 1995-2003, 2010 Mark Adler
  * For conditions of distribution and use, see copyright notice in zlib.h
diff --git a/lib/libz/inffixed.h b/lib/libz/inffixed.h
index 9784be0e2db..d6283277694 100644
--- a/lib/libz/inffixed.h
+++ b/lib/libz/inffixed.h
@@ -1,5 +1,3 @@
-/*	$OpenBSD: inffixed.h,v 1.5 2021/07/04 17:41:23 tb Exp $ */
-
     /* inffixed.h -- table for decoding fixed codes
      * Generated automatically by makefixed().
      */
diff --git a/lib/libz/inflate.c b/lib/libz/inflate.c
index 35e8930bd85..c569ee602a4 100644
--- a/lib/libz/inflate.c
+++ b/lib/libz/inflate.c
@@ -1,4 +1,3 @@
-/*	$OpenBSD: inflate.c,v 1.15 2022/10/20 15:35:31 tb Exp $ */
 /* inflate.c -- zlib decompression
  * Copyright (C) 1995-2022 Mark Adler
  * For conditions of distribution and use, see copyright notice in zlib.h
diff --git a/lib/libz/inflate.h b/lib/libz/inflate.h
index 0f47defae72..f127b6b1fa5 100644
--- a/lib/libz/inflate.h
+++ b/lib/libz/inflate.h
@@ -1,5 +1,3 @@
-/*	$OpenBSD: inflate.h,v 1.5 2022/05/08 14:04:22 tb Exp $ */
-
 /* inflate.h -- internal inflate state definition
  * Copyright (C) 1995-2019 Mark Adler
  * For conditions of distribution and use, see copyright notice in zlib.h
diff --git a/lib/libz/inftrees.c b/lib/libz/inftrees.c
index 31df868e187..3881743c0a5 100644
--- a/lib/libz/inftrees.c
+++ b/lib/libz/inftrees.c
@@ -1,4 +1,3 @@
-/*	$OpenBSD: inftrees.c,v 1.12 2022/10/20 15:35:31 tb Exp $ */
 /* inftrees.c -- generate Huffman trees for efficient decoding
  * Copyright (C) 1995-2022 Mark Adler
  * For conditions of distribution and use, see copyright notice in zlib.h
diff --git a/lib/libz/inftrees.h b/lib/libz/inftrees.h
index 90a777dc687..f53665311c1 100644
--- a/lib/libz/inftrees.h
+++ b/lib/libz/inftrees.h
@@ -1,5 +1,3 @@
-/*	$OpenBSD: inftrees.h,v 1.8 2022/10/20 15:35:31 tb Exp $ */
-
 /* inftrees.h -- header to use inftrees.c
  * Copyright (C) 1995-2005, 2010 Mark Adler
  * For conditions of distribution and use, see copyright notice in zlib.h
diff --git a/lib/libz/trees.c b/lib/libz/trees.c
index 4dabdf95d66..7d13e842c50 100644
--- a/lib/libz/trees.c
+++ b/lib/libz/trees.c
@@ -1,4 +1,3 @@
-/*	$OpenBSD: trees.c,v 1.12 2022/10/20 15:35:31 tb Exp $ */
 /* trees.c -- output deflated data using Huffman coding
  * Copyright (C) 1995-2021 Jean-loup Gailly
  * detect_data_type() function provided freely by Cosmin Truta, 2006
diff --git a/lib/libz/trees.h b/lib/libz/trees.h
index d692724a818..d35639d82a2 100644
--- a/lib/libz/trees.h
+++ b/lib/libz/trees.h
@@ -1,5 +1,3 @@
-/*	$OpenBSD: trees.h,v 1.4 2021/07/04 17:41:23 tb Exp $ */
-
 /* header created automatically with -DGEN_TREES_H */
 
 local const ct_data static_ltree[L_CODES+2] = {
diff --git a/lib/libz/uncompr.c b/lib/libz/uncompr.c
index be47507d118..a0afd084529 100644
--- a/lib/libz/uncompr.c
+++ b/lib/libz/uncompr.c
@@ -1,4 +1,3 @@
-/*	$OpenBSD: uncompr.c,v 1.7 2022/10/20 15:35:31 tb Exp $ */
 /* uncompr.c -- decompress a memory buffer
  * Copyright (C) 1995-2003, 2010, 2014, 2016 Jean-loup Gailly, Mark Adler
  * For conditions of distribution and use, see copyright notice in zlib.h
diff --git a/lib/libz/zconf.h b/lib/libz/zconf.h
index 8e07a61598e..f1479c55dfb 100644
--- a/lib/libz/zconf.h
+++ b/lib/libz/zconf.h
@@ -1,5 +1,3 @@
-/*	$OpenBSD: zconf.h,v 1.11 2022/10/20 15:35:31 tb Exp $ */
-
 /* zconf.h -- configuration of the zlib compression library
  * Copyright (C) 1995-2016 Jean-loup Gailly, Mark Adler
  * For conditions of distribution and use, see copyright notice in zlib.h
diff --git a/lib/libz/zlib.h b/lib/libz/zlib.h
index 5ba271a6fea..953cb5012dc 100644
--- a/lib/libz/zlib.h
+++ b/lib/libz/zlib.h
@@ -1,5 +1,3 @@
-/*	$OpenBSD: zlib.h,v 1.16 2022/10/20 15:35:31 tb Exp $ */
-
 /* zlib.h -- interface of the 'zlib' general purpose compression library
   version 1.2.13, October 13th, 2022
 
diff --git a/lib/libz/zutil.c b/lib/libz/zutil.c
index d881b255d25..75a283e8c8e 100644
--- a/lib/libz/zutil.c
+++ b/lib/libz/zutil.c
@@ -1,4 +1,3 @@
-/*	$OpenBSD: zutil.c,v 1.12 2022/10/20 15:35:31 tb Exp $ */
 /* zutil.c -- target dependent utility functions for the compression library
  * Copyright (C) 1995-2017 Jean-loup Gailly
  * For conditions of distribution and use, see copyright notice in zlib.h
diff --git a/lib/libz/zutil.h b/lib/libz/zutil.h
index 38c4185f6fc..9479f6d9cdf 100644
--- a/lib/libz/zutil.h
+++ b/lib/libz/zutil.h
@@ -1,5 +1,3 @@
-/*	$OpenBSD: zutil.h,v 1.13 2022/10/20 15:35:31 tb Exp $ */
-
 /* zutil.h -- internal interface and configuration of the compression library
  * Copyright (C) 1995-2022 Jean-loup Gailly, Mark Adler
  * For conditions of distribution and use, see copyright notice in zlib.h
diff --git a/sys/lib/libz/adler32.c b/sys/lib/libz/adler32.c
index ca34e389ed3..8d520cd9e37 100644
--- a/sys/lib/libz/adler32.c
+++ b/sys/lib/libz/adler32.c
@@ -1,4 +1,3 @@
-/*	$OpenBSD: adler32.c,v 1.11 2021/07/04 14:24:49 tb Exp $ */
 /* adler32.c -- compute the Adler-32 checksum of a data stream
  * Copyright (C) 1995-2011, 2016 Mark Adler
  * For conditions of distribution and use, see copyright notice in zlib.h
diff --git a/sys/lib/libz/compress.c b/sys/lib/libz/compress.c
index a61fdeae95e..aad3e346e76 100644
--- a/sys/lib/libz/compress.c
+++ b/sys/lib/libz/compress.c
@@ -1,4 +1,3 @@
-/*	$OpenBSD: compress.c,v 1.3 2022/10/20 15:36:47 tb Exp $ */
 /* compress.c -- compress a memory buffer
  * Copyright (C) 1995-2005, 2014, 2016 Jean-loup Gailly, Mark Adler
  * For conditions of distribution and use, see copyright notice in zlib.h
diff --git a/sys/lib/libz/crc32.c b/sys/lib/libz/crc32.c
index b2e59525b27..0796b0f4c84 100644
--- a/sys/lib/libz/crc32.c
+++ b/sys/lib/libz/crc32.c
@@ -1,4 +1,3 @@
-/*	$OpenBSD: crc32.c,v 1.16 2022/10/20 15:36:47 tb Exp $ */
 /* crc32.c -- compute the CRC-32 of a data stream
  * Copyright (C) 1995-2022 Mark Adler
  * For conditions of distribution and use, see copyright notice in zlib.h
diff --git a/sys/lib/libz/crc32.h b/sys/lib/libz/crc32.h
index 92f715d5847..137df68d616 100644
--- a/sys/lib/libz/crc32.h
+++ b/sys/lib/libz/crc32.h
@@ -1,5 +1,3 @@
-/*	$OpenBSD: crc32.h,v 1.4 2022/05/08 14:05:29 tb Exp $ */
-
 /* crc32.h -- tables for rapid CRC calculation
  * Generated automatically by crc32.c
  */
diff --git a/sys/lib/libz/deflate.c b/sys/lib/libz/deflate.c
index d94a100dc96..6c7bf3de995 100644
--- a/sys/lib/libz/deflate.c
+++ b/sys/lib/libz/deflate.c
@@ -1,4 +1,3 @@
-/*	$OpenBSD: deflate.c,v 1.10 2022/10/20 15:36:47 tb Exp $ */
 /* deflate.c -- compress data using the deflation algorithm
  * Copyright (C) 1995-2022 Jean-loup Gailly and Mark Adler
  * For conditions of distribution and use, see copyright notice in zlib.h
diff --git a/sys/lib/libz/deflate.h b/sys/lib/libz/deflate.h
index 23e11c2eae9..c35b6f8e4b9 100644
--- a/sys/lib/libz/deflate.h
+++ b/sys/lib/libz/deflate.h
@@ -1,5 +1,3 @@
-/*	$OpenBSD: deflate.h,v 1.7 2022/10/20 15:36:47 tb Exp $ */
-
 /* deflate.h -- internal compression state
  * Copyright (C) 1995-2018 Jean-loup Gailly
  * For conditions of distribution and use, see copyright notice in zlib.h
diff --git a/sys/lib/libz/infback.c b/sys/lib/libz/infback.c
index ba6723eefc3..df356dbbe49 100644
--- a/sys/lib/libz/infback.c
+++ b/sys/lib/libz/infback.c
@@ -1,4 +1,3 @@
-/*	$OpenBSD: infback.c,v 1.10 2022/10/20 15:36:47 tb Exp $ */
 /* infback.c -- inflate using a call-back interface
  * Copyright (C) 1995-2022 Mark Adler
  * For conditions of distribution and use, see copyright notice in zlib.h
diff --git a/sys/lib/libz/inffast.c b/sys/lib/libz/inffast.c
index 06cbd6f1459..db0424db48a 100644
--- a/sys/lib/libz/inffast.c
+++ b/sys/lib/libz/inffast.c
@@ -1,4 +1,3 @@
-/*	$OpenBSD: inffast.c,v 1.14 2022/05/08 14:05:29 tb Exp $ */
 /* inffast.c -- fast decoding
  * Copyright (C) 1995-2017 Mark Adler
  * For conditions of distribution and use, see copyright notice in zlib.h
diff --git a/sys/lib/libz/inffast.h b/sys/lib/libz/inffast.h
index 3b6f2e69659..e5c1aa4ca8c 100644
--- a/sys/lib/libz/inffast.h
+++ b/sys/lib/libz/inffast.h
@@ -1,5 +1,3 @@
-/*	$OpenBSD: inffast.h,v 1.8 2021/07/04 17:41:23 tb Exp $ */
-
 /* inffast.h -- header to use inffast.c
  * Copyright (C) 1995-2003, 2010 Mark Adler
  * For conditions of distribution and use, see copyright notice in zlib.h
diff --git a/sys/lib/libz/inffixed.h b/sys/lib/libz/inffixed.h
index 9784be0e2db..d6283277694 100644
--- a/sys/lib/libz/inffixed.h
+++ b/sys/lib/libz/inffixed.h
@@ -1,5 +1,3 @@
-/*	$OpenBSD: inffixed.h,v 1.5 2021/07/04 17:41:23 tb Exp $ */
-
     /* inffixed.h -- table for decoding fixed codes
      * Generated automatically by makefixed().
      */
diff --git a/sys/lib/libz/inflate.c b/sys/lib/libz/inflate.c
index a695f17dc29..db0d935e234 100644
--- a/sys/lib/libz/inflate.c
+++ b/sys/lib/libz/inflate.c
@@ -1,4 +1,3 @@
-/*	$OpenBSD: inflate.c,v 1.21 2022/10/20 15:36:47 tb Exp $ */
 /* inflate.c -- zlib decompression
  * Copyright (C) 1995-2022 Mark Adler
  * For conditions of distribution and use, see copyright notice in zlib.h
diff --git a/sys/lib/libz/inflate.h b/sys/lib/libz/inflate.h
index 9c5e9574f61..f127b6b1fa5 100644
--- a/sys/lib/libz/inflate.h
+++ b/sys/lib/libz/inflate.h
@@ -1,5 +1,3 @@
-/*	$OpenBSD: inflate.h,v 1.5 2022/05/08 14:05:29 tb Exp $ */
-
 /* inflate.h -- internal inflate state definition
  * Copyright (C) 1995-2019 Mark Adler
  * For conditions of distribution and use, see copyright notice in zlib.h
diff --git a/sys/lib/libz/inftrees.c b/sys/lib/libz/inftrees.c
index 9c9d50bb336..3881743c0a5 100644
--- a/sys/lib/libz/inftrees.c
+++ b/sys/lib/libz/inftrees.c
@@ -1,4 +1,3 @@
-/*	$OpenBSD: inftrees.c,v 1.18 2022/10/20 15:36:47 tb Exp $ */
 /* inftrees.c -- generate Huffman trees for efficient decoding
  * Copyright (C) 1995-2022 Mark Adler
  * For conditions of distribution and use, see copyright notice in zlib.h
diff --git a/sys/lib/libz/inftrees.h b/sys/lib/libz/inftrees.h
index 5aac6a2b310..f53665311c1 100644
--- a/sys/lib/libz/inftrees.h
+++ b/sys/lib/libz/inftrees.h
@@ -1,5 +1,3 @@
-/*	$OpenBSD: inftrees.h,v 1.11 2022/10/20 15:36:47 tb Exp $ */
-
 /* inftrees.h -- header to use inftrees.c
  * Copyright (C) 1995-2005, 2010 Mark Adler
  * For conditions of distribution and use, see copyright notice in zlib.h
diff --git a/sys/lib/libz/trees.c b/sys/lib/libz/trees.c
index bd3a9b6a23f..7d13e842c50 100644
--- a/sys/lib/libz/trees.c
+++ b/sys/lib/libz/trees.c
@@ -1,4 +1,3 @@
-/*	$OpenBSD: trees.c,v 1.7 2022/10/20 15:36:47 tb Exp $ */
 /* trees.c -- output deflated data using Huffman coding
  * Copyright (C) 1995-2021 Jean-loup Gailly
  * detect_data_type() function provided freely by Cosmin Truta, 2006
diff --git a/sys/lib/libz/trees.h b/sys/lib/libz/trees.h
index b74e7b24ed9..d35639d82a2 100644
--- a/sys/lib/libz/trees.h
+++ b/sys/lib/libz/trees.h
@@ -1,5 +1,3 @@
-/*	$OpenBSD: trees.h,v 1.3 2021/07/04 17:41:23 tb Exp $ */
-
 /* header created automatically with -DGEN_TREES_H */
 
 local const ct_data static_ltree[L_CODES+2] = {
diff --git a/sys/lib/libz/zconf.h b/sys/lib/libz/zconf.h
index 50f3d485ed0..932a4ac5e79 100644
--- a/sys/lib/libz/zconf.h
+++ b/sys/lib/libz/zconf.h
@@ -1,5 +1,3 @@
-/*	$OpenBSD: zconf.h,v 1.15 2022/10/20 15:36:47 tb Exp $ */
-
 /* zconf.h -- configuration of the zlib compression library
  * Copyright (C) 1995-2016 Jean-loup Gailly, Mark Adler
  * For conditions of distribution and use, see copyright notice in zlib.h
diff --git a/sys/lib/libz/zlib.h b/sys/lib/libz/zlib.h
index c43687b8342..0b2992ec2ea 100644
--- a/sys/lib/libz/zlib.h
+++ b/sys/lib/libz/zlib.h
@@ -1,5 +1,3 @@
-/*	$OpenBSD: zlib.h,v 1.18 2022/10/20 15:36:47 tb Exp $ */
-
 /* zlib.h -- interface of the 'zlib' general purpose compression library
   version 1.2.13, October 13th, 2022
 
diff --git a/sys/lib/libz/zutil.c b/sys/lib/libz/zutil.c
index 303bb5ae63d..5d8bc65ac37 100644
--- a/sys/lib/libz/zutil.c
+++ b/sys/lib/libz/zutil.c
@@ -1,4 +1,3 @@
-/*	$OpenBSD: zutil.c,v 1.5 2022/10/20 15:36:47 tb Exp $ */
 /* zutil.c -- target dependent utility functions for the compression library
  * Copyright (C) 1995-2017 Jean-loup Gailly
  * For conditions of distribution and use, see copyright notice in zlib.h
diff --git a/sys/lib/libz/zutil.h b/sys/lib/libz/zutil.h
index 487b6a422d5..d9a2b90cf4a 100644
--- a/sys/lib/libz/zutil.h
+++ b/sys/lib/libz/zutil.h
@@ -1,5 +1,3 @@
-/*	$OpenBSD: zutil.h,v 1.24 2022/10/20 15:36:47 tb Exp $ */
-
 /* zutil.h -- internal interface and configuration of the compression library
  * Copyright (C) 1995-2022 Jean-loup Gailly, Mark Adler
  * For conditions of distribution and use, see copyright notice in zlib.h
-- 
2.20.1