progs/catsign.1: Fix the warning about `verify' output.

Obviously copied from `catcrypt decrypt', which does only output
verified data because of its chunking; but `catsign' doesn't work like
this by default.

diff --git a/progs/catsign.1 b/progs/catsign.1
index 190c631..5f19a1d 100644 (file)
--- a/progs/catsign.1
+++ b/progs/catsign.1
@@ -539,8 +539,16 @@ No output.  Watch the exit status.
 All messages.
 .PP
 .B Warning!
-All output written has been checked for authenticity.  However, output
-can fail madway through for many reasons, and the resulting message may
+Unless the
+.B \-b
+option is set (which happens automatically if writing to standard
+output),
+.BR catsign 's
+output is
+.I not
+checked for authenticity until it has all been written.  Even with
+.BR \-b ,
+output can fail midway for many reasons, and the resulting message may
 therefore be truncated.  Don't rely on the output being complete until
 .B OK
 is printed or