Re: [PATCH v2 1/2] 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>
> ---

>  git-send-email.perl | 38 +++++++++++++++++++-------------------
>  1 file changed, 19 insertions(+), 19 deletions(-)
>
> diff --git a/git-send-email.perl b/git-send-email.perl
> index edcc6d346..0c07f48d5 100755
> --- a/git-send-email.perl
> +++ b/git-send-email.perl
> @@ -166,13 +166,13 @@ my $re_encoded_word = qr/=\?($re_token)\?($re_token)\?($re_encoded_text)\?=/;
>  
>  # 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 @@ die __("--dump-aliases incompatible with other options\n")
>      if !$help and $dump_aliases and @ARGV;
>  $rc = GetOptions(
>  		    "sender|from=s" => \$sender,
> -                    "in-reply-to=s" => \$initial_reply_to,
> +                    "in-reply-to=s" => \$initial_in_reply_to,
>  		    "subject=s" => \$initial_subject,
>  		    "to=s" => \@initial_to,
>  		    "to-cmd=s" => \$to_cmd,
> @@ -676,7 +676,7 @@ if ($compose) {
>  
>  	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 @@ Clear the body content if you don't wish to send a summary.
>  EOT2
>  From: $tpl_sender
>  Subject: $tpl_subject
> -In-Reply-To: $tpl_reply_to
> +In-Reply-To: $tpl_in_reply_to
>  
>  EOT3
>  	for my $f (@files) {
> @@ -736,7 +736,7 @@ EOT3
>  				quote_subject($subject, $compose_encoding) .
>  				"\n";
>  		} elsif (/^In-Reply-To:\s*(.+)\s*$/i) {
> -			$initial_reply_to = $1;
> +			$initial_in_reply_to = $1;
>  			next;
>  		} elsif (/^From:\s*(.+)\s*$/i) {
>  			$sender = $1;
> @@ -872,16 +872,16 @@ sub expand_one_alias {
>  @initial_cc = process_address_list(@initial_cc);
>  @bcclist = process_address_list(@bcclist);
>  
> -if ($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 $smtp_server) {
> @@ -901,7 +901,7 @@ if ($compose && $compose > 0) {
>  }
>  
>  # Variables we set as part of the loop over files
> -our ($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 {
> @@ -1310,9 +1310,9 @@ Message-Id: $message_id
>  	if ($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: $references\n";
>  	}
>  	if (@xh) {
> @@ -1489,8 +1489,8 @@ EOF
>  	return 1;
>  }
>  
> -$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;
>  
> @@ -1700,9 +1700,9 @@ foreach my $t (@files) {
>  
>  	# set up for the next message
>  	if ($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 {