Merge branch 'bs/sendemail-tighten-anything-by'

The recently added feature to add addresses that are on
anything-by: trailers in 'git send-email' was found to be way too
eager and considered nonsense strings as if they can be legitimate
beginning of *-by: trailer.  This has been tightened.

* bs/sendemail-tighten-anything-by:
  send-email: don't cc *-by lines with '-' prefix

git-send-email.perl

@@ -1699,7 +1699,7 @@ sub process_file {
 	# Now parse the message body
 	while(<$fh>) {
 		$message .=  $_;
-		if (/^([a-z-]*-by|Cc): (.*)/i) {
+		if (/^([a-z][a-z-]*-by|Cc): (.*)/i) {
 			chomp;
 			my ($what, $c) = ($1, $2);
 			# strip garbage for the address we'll use: