From 94a5864b6666ca5c2d0760702f386047189a248e Mon Sep 17 00:00:00 2001
From: Guillem Jover <guillem@debian.org>
Date: Thu, 9 Apr 2015 23:16:48 +0200
Subject: [PATCH] deb822: Fix OpenPGP Armor Header Line parsing

We should only accept [\r\t ] as trailing whitespace, although RFC4880
does not clarify what whitespace really maps to, we should really match
the GnuPG implementation anyway, as that is what we use to verify the
signatures.
---
 lib/debian/deb822.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/debian/deb822.py b/lib/debian/deb822.py
index 0c0748e..c1dcb17 100644
--- a/lib/debian/deb822.py
+++ b/lib/debian/deb822.py
@@ -638,7 +638,7 @@ class Deb822(Deb822Dict):
         lines = []
         gpg_post_lines = []
         state = b'SAFE'
-        gpgre = re.compile(br'^-----(?P<action>BEGIN|END) PGP (?P<what>[^-]+)-----\s*$')
+        gpgre = re.compile(br'^-----(?P<action>BEGIN|END) PGP (?P<what>[^-]+)-----[\r\t ]*$')
         # Include whitespace-only lines in blank lines to split paragraphs.
         # (see #715558)
         blank_line = re.compile(b'^\s*$')
-- 
2.2.1.209.g41e5f3a