From 6977a36e91ca2de7c3030c0b04e9a68df5d904b0 Mon Sep 17 00:00:00 2001
From: Jacob Bachmeyer <jcb@gnu.org>
Date: Mon, 17 Oct 2022 23:20:30 -0500
Subject: [PATCH] Improve RFC4880 conformance

---
 gatekeeper.pl | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/gatekeeper.pl b/gatekeeper.pl
index 2e62057..44e1c51 100755
--- a/gatekeeper.pl
+++ b/gatekeeper.pl
@@ -812,7 +812,8 @@ sub read_directive {
   # First, we find the PGP signature header.
   while (<$directive>) {
     chomp; s/\r+$//;	# remove line ending, including DOS type
-    last if m/^-----BEGIN PGP SIGNED MESSAGE-----$/;
+    last if m/^-----BEGIN PGP SIGNED MESSAGE-----\s*$/;
+    # RFC4880 allows trailing whitespace on marker lines.
   }
   # We are now in the armor headers.
   while (<$directive>) {
-- 
2.25.1