Merge branch 'jh/send-email-one-cc' into maint

"Cc:" on the trailer part does not have to conform to RFC strictly,
unlike in the e-mail header.  "git send-email" has been updated to
ignore anything after '>' when picking addresses, to allow non-address
cruft like " # stable 4.4" after the address.

* jh/send-email-one-cc:
  send-email: only allow one address per body tag

Author: gitster

git-send-email.perl

@@ -1563,7 +1563,7 @@ sub send_message {
 	# Now parse the message body
 	while(<$fh>) {
 		$message .=  $_;
-		if (/^(Signed-off-by|Cc): (.*)$/i) {
+		if (/^(Signed-off-by|Cc): ([^>]*>?)/i) {
 			chomp;
 			my ($what, $c) = ($1, $2);
 			chomp $c;

t/t9001-send-email.sh

@@ -148,7 +148,6 @@ cat >expected-cc <<\EOF
 [email protected]!
 [email protected]!
 [email protected]!
-[email protected]!
 EOF
 "
 
@@ -159,9 +158,9 @@ test_expect_success $PREREQ 'cc trailer with various syntax' '
 	Test Cc: trailers.
 
 	Cc: [email protected]
-	Cc: <[email protected]> # this is part of the name
-	Cc: <[email protected]>, <[email protected]> # [email protected]
-	Cc: "Some # Body" <five@example.com> [part.of.name.too]
+	Cc: <[email protected]> # trailing comments are ignored
+	Cc: <[email protected]>, <not.[email protected]> one address per line
+	Cc: "Some # Body" <four@example.com> [ <also.a.comment> ]
 	EOF
 	clean_fake_sendmail &&
 	git send-email -1 [email protected] \