document what this file stands for

diff --git a/usr.sbin/pkg_add/OpenBSD/Signature.pm b/usr.sbin/pkg_add/OpenBSD/Signature.pm
index 5d747c2..a98e31f 100644 (file)
--- a/usr.sbin/pkg_add/OpenBSD/Signature.pm
+++ b/usr.sbin/pkg_add/OpenBSD/Signature.pm
@@ -1,5 +1,5 @@
 # ex:ts=8 sw=4:
-# $OpenBSD: Signature.pm,v 1.25 2021/03/15 09:32:04 espie Exp $
+# $OpenBSD: Signature.pm,v 1.26 2022/05/19 09:20:31 espie Exp $
 #
 # Copyright (c) 2010 Marc Espie <espie@openbsd.org>
 #
@@ -15,6 +15,9 @@
 # ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 # OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 
+# this is the code that handles "update signatures", which has nothing
+# to do with cryptography
+
 use strict;
 use warnings;