[PATCH] git-send-email: add rfc2047 quoting for "=?"

[Krzysztof Mazur <krzysiek@podlesie.net>]

For raw subjects rfc2047 quoting is needed not only for non-ASCII characters,
but also for any possible rfc2047 in it.

Signed-off-by: Krzysztof Mazur <krzysiek@podlesie.net>
---
Oops, this ugly Subject was generated by git format-patch (both 1.8.0
and km/send-email-compose-encoding).

 git-send-email.perl | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/git-send-email.perl b/git-send-email.perl
index eb1b876..cfd20fa 100755
--- a/git-send-email.perl
+++ b/git-send-email.perl
@@ -908,7 +908,7 @@ sub is_rfc2047_quoted {
 sub subject_needs_rfc2047_quoting {
 	my $s = shift;
 
-	return ($s =~ /[^[:ascii:]]/);
+	return ($s =~ /[^[:ascii:]]/) || ($s =~ /=\?/);
 }
 
 sub quote_subject {
-- 
1.8.0.rc0.30.g72615bf