send-email: initial_to and initial_reply_to are both optional

We may pick up additional recipients from the format-patch output
files we are sending, in which case it is perfectly valid to leave
the @initial_to empty when the prompt asks.  We may want to start
a new discussion thread without replying to anything, and it is
valid to leave $initial_reply_to empty.

An earlier update to avoid y@example.com stuffed in address fields
did not take these two cases into account.

Signed-off-by: Stephen Boyd <bebarino@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/git-send-email.perl b/git-send-email.perl
index e89729bf436ea42634378c966b900bb76485db07..b1fb7e615f309da5771927a8e9ab4e61ad8f5f59 100755 (executable)
--- a/git-send-email.perl
+++ b/git-send-email.perl
@@ -759,7 +759,8 @@ if (!defined $sender) {
 }
 
 if (!@initial_to && !defined $to_cmd) {
-       my $to = ask("Who should the emails be sent to? ",
+       my $to = ask("Who should the emails be sent to (if any)? ",
+                    default => "",
                     valid_re => qr/\@.*\./, confirm_only => 1);
        push @initial_to, parse_address_line($to) if defined $to; # sanitized/validated later
        $prompting++;
@@ -786,7 +787,8 @@ sub expand_one_alias {
 
 if ($thread && !defined $initial_reply_to && $prompting) {
        $initial_reply_to = ask(
-               "Message-ID to be used as In-Reply-To for the first email? ",
+               "Message-ID to be used as In-Reply-To for the first email (if any)? ",
+               default => "",
                valid_re => qr/\@.*\./, confirm_only => 1);
 }
 if (defined $initial_reply_to) {