commit b6bd2d09646fbacd3fd9d859fd219707812baae4
author Junio C Hamano <gitster@pobox.com> Mon Sep 21 12:27:15 2015 -0700
committer Junio C Hamano <gitster@pobox.com> Mon Sep 21 12:27:15 2015 -0700
tree 9e685741a2c62aaba632f8d063d1d11f4b0b4551
parent e646ab9cf83025e1000db6ec3c1716f978b099f2
parent 904f6e7c15ab50c02048f50002d8f72b9ed74075

Merge branch 'bn/send-email-smtp-auth-error-message-fix'

Fix a minor regression brought in to "git send-email" by a recent
addition of the "--smtp-auth" option.

* bn/send-email-smtp-auth-error-message-fix:
  send-email: fix uninitialized var warning for $smtp_auth

git-send-email.perl

diff --git a/git-send-email.perl b/git-send-email.perl
index c5a3f76..e3ff44b 100755
--- a/git-send-email.perl
+++ b/git-send-email.perl
@@ -1136,7 +1136,7 @@
 
 	# Check mechanism naming as defined in:
 	# https://tools.ietf.org/html/rfc4422#page-8
-	if ($smtp_auth !~ /^(\b[A-Z0-9-_]{1,20}\s*)*$/) {
+	if ($smtp_auth && $smtp_auth !~ /^(\b[A-Z0-9-_]{1,20}\s*)*$/) {
 		die "invalid smtp auth: '${smtp_auth}'";
 	}