test: fix description of -t: it has no default

-t always requires the fd number as argument, there's no default.  With
only one argument -t is equivalent to `test -n -t' and so banally always
true.

diff from Lucas (lucas [at] sexy [dot] is)
ok millert@

diff --git a/bin/test/test.1 b/bin/test/test.1
index 6af8fcb..2371acd 100644 (file)
--- a/bin/test/test.1
+++ b/bin/test/test.1
@@ -1,4 +1,4 @@
-.\"    $OpenBSD: test.1,v 1.33 2016/08/16 18:51:25 schwarze Exp $
+.\"    $OpenBSD: test.1,v 1.34 2023/06/10 07:19:39 op Exp $
 .\"    $NetBSD: test.1,v 1.6 1995/03/21 07:04:03 cgd Exp $
 .\"
 .\" Copyright (c) 1991, 1993
@@ -33,7 +33,7 @@
 .\"
 .\"     @(#)test.1     8.1 (Berkeley) 5/31/93
 .\"
-.Dd $Mdocdate: August 16 2016 $
+.Dd $Mdocdate: June 10 2023 $
 .Dt TEST 1
 .Os
 .Sh NAME
@@ -153,7 +153,7 @@ than zero.
 True if the file whose file descriptor number
 is
 .Ar file_descriptor
-(default 1) is open and is associated with a terminal.
+is open and is associated with a terminal.
 .It Fl u Ar file
 True if
 .Ar file