send-email: rename variable for clarity

The SMTP protocol has both, the 'Reply-To' and the 'In-Reply-To' header
fields. We only use the latter. To avoid confusion, rename the variable
for it.

Signed-off-by: Christian Ludwig <chrissicool@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/git-send-email.perl b/git-send-email.perl
index c2b2e8ccfa0df94e25b1de2bf8179dd819982137..36a0774c2d96d61c572cb15349e3633ec6b4a610 100755 (executable)
--- a/git-send-email.perl
+++ b/git-send-email.perl
@@ -166,13 +166,13 @@ sub format_2822_time {
 
 # Variables we fill in automatically, or via prompting:
 my (@to,$no_to,@initial_to,@cc,$no_cc,@initial_cc,@bcclist,$no_bcc,@xh,
-       $initial_reply_to,$initial_subject,@files,
+       $initial_in_reply_to,$initial_subject,@files,
        $author,$sender,$smtp_authpass,$annotate,$use_xmailer,$compose,$time);
 
 my $envelope_sender;
 
 # Example reply to:
-#$initial_reply_to = ''; #<20050203173208.GA23964@foobar.com>';
+#$initial_in_reply_to = ''; #<20050203173208.GA23964@foobar.com>';
 
 my $repo = eval { Git->repository() };
 my @repo = $repo ? ($repo) : ();
@@ -314,7 +314,7 @@ sub signal_handler {
     if !$help and $dump_aliases and @ARGV;
 $rc = GetOptions(
                    "sender|from=s" => \$sender,
-                    "in-reply-to=s" => \$initial_reply_to,
+                    "in-reply-to=s" => \$initial_in_reply_to,
                    "subject=s" => \$initial_subject,
                    "to=s" => \@initial_to,
                    "to-cmd=s" => \$to_cmd,
@@ -676,7 +676,7 @@ sub get_patch_subject {
 
        my $tpl_sender = $sender || $repoauthor || $repocommitter || '';
        my $tpl_subject = $initial_subject || '';
-       my $tpl_reply_to = $initial_reply_to || '';
+       my $tpl_in_reply_to = $initial_in_reply_to || '';
 
        print $c <<EOT1, Git::prefix_lines("GIT: ", __ <<EOT2), <<EOT3;
 From $tpl_sender # This line is ignored.
@@ -689,7 +689,7 @@ sub get_patch_subject {
 EOT2
 From: $tpl_sender
 Subject: $tpl_subject
-In-Reply-To: $tpl_reply_to
+In-Reply-To: $tpl_in_reply_to
 
 EOT3
        for my $f (@files) {
@@ -728,7 +728,7 @@ sub get_patch_subject {
                $sender = delete($parsed_email{'From'});
        }
        if ($parsed_email{'In-Reply-To'}) {
-               $initial_reply_to = delete($parsed_email{'In-Reply-To'});
+               $initial_in_reply_to = delete($parsed_email{'In-Reply-To'});
        }
        if ($parsed_email{'Subject'}) {
                $initial_subject = delete($parsed_email{'Subject'});
@@ -911,16 +911,16 @@ sub expand_one_alias {
 @initial_cc = process_address_list(@initial_cc);
 @bcclist = process_address_list(@bcclist);
 
-if ($thread && !defined $initial_reply_to && $prompting) {
-       $initial_reply_to = ask(
+if ($thread && !defined $initial_in_reply_to && $prompting) {
+       $initial_in_reply_to = ask(
                __("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) {
-       $initial_reply_to =~ s/^\s*<?//;
-       $initial_reply_to =~ s/>?\s*$//;
-       $initial_reply_to = "<$initial_reply_to>" if $initial_reply_to ne '';
+if (defined $initial_in_reply_to) {
+       $initial_in_reply_to =~ s/^\s*<?//;
+       $initial_in_reply_to =~ s/>?\s*$//;
+       $initial_in_reply_to = "<$initial_in_reply_to>" if $initial_in_reply_to ne '';
 }
 
 if (!defined $smtp_server) {
@@ -940,7 +940,7 @@ sub expand_one_alias {
 }
 
 # Variables we set as part of the loop over files
-our ($message_id, %mail, $subject, $reply_to, $references, $message,
+our ($message_id, %mail, $subject, $in_reply_to, $references, $message,
        $needs_confirm, $message_num, $ask_default);
 
 sub extract_valid_address {
@@ -1349,9 +1349,9 @@ sub send_message {
        if ($use_xmailer) {
                $header .= "X-Mailer: git-send-email $gitversion\n";
        }
-       if ($reply_to) {
+       if ($in_reply_to) {
 
-               $header .= "In-Reply-To: $reply_to\n";
+               $header .= "In-Reply-To: $in_reply_to\n";
                $header .= "References: $references\n";
        }
        if (@xh) {
@@ -1528,8 +1528,8 @@ sub send_message {
        return 1;
 }
 
-$reply_to = $initial_reply_to;
-$references = $initial_reply_to || '';
+$in_reply_to = $initial_in_reply_to;
+$references = $initial_in_reply_to || '';
 $subject = $initial_subject;
 $message_num = 0;
 
@@ -1739,9 +1739,9 @@ sub send_message {
 
        # set up for the next message
        if ($thread && $message_was_sent &&
-               ($chain_reply_to || !defined $reply_to || length($reply_to) == 0 ||
+               ($chain_reply_to || !defined $in_reply_to || length($in_reply_to) == 0 ||
                $message_num == 1)) {
-               $reply_to = $message_id;
+               $in_reply_to = $message_id;
                if (length $references > 0) {
                        $references .= "\n $message_id";
                } else {