Merge branch 'fc/send-email-chainreplyto-warning'

An overdue removal of "behaviour changed at 1.7.0; if you were
living in a cave, here is what you can adjust to it" message.

* fc/send-email-chainreplyto-warning:
  send-email: remove warning about unset chainreplyto

git-send-email.perl

@@ -203,11 +203,9 @@ sub do_edit {
 
 my ($debug_net_smtp) = 0;		# Net::SMTP, see send_message()
 
-my $not_set_by_user = "true but not set by the user";
-
 my %config_bool_settings = (
     "thread" => [\$thread, 1],
-    "chainreplyto" => [\$chain_reply_to, $not_set_by_user],
+    "chainreplyto" => [\$chain_reply_to, 0],
     "suppressfrom" => [\$suppress_from, undef],
     "signedoffbycc" => [\$signed_off_by_cc, undef],
     "signedoffcc" => [\$signed_off_by_cc, undef],      # Deprecated
@@ -241,19 +239,6 @@ sub do_edit {
     "aliasesfile" => \@alias_files,
 );
 
-# Help users prepare for 1.7.0
-sub chain_reply_to {
-	if (defined $chain_reply_to &&
-	    $chain_reply_to eq $not_set_by_user) {
-		print STDERR
-		    "In git 1.7.0, the default has changed to --no-chain-reply-to\n" .
-		    "Set sendemail.chainreplyto configuration variable to true if\n" .
-		    "you want to keep --chain-reply-to as your default.\n";
-		$chain_reply_to = 0;
-	}
-	return $chain_reply_to;
-}
-
 # Handle Uncouth Termination
 sub signal_handler {
 
@@ -1437,7 +1422,7 @@ 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 $reply_to || length($reply_to) == 0 ||
 		$message_num == 1)) {
 		$reply_to = $message_id;
 		if (length $references > 0) {

t/t9001-send-email.sh

@@ -1003,55 +1003,6 @@ test_expect_success $PREREQ 'threading but no chain-reply-to' '
 	grep "In-Reply-To: " stdout
 '
 
-test_expect_success $PREREQ 'warning with an implicit --chain-reply-to' '
-	git send-email \
-	--dry-run \
-	--from="Example <nobody@example.com>" \
-	--to=nobody@example.com \
-	outdir/000?-*.patch 2>errors >out &&
-	grep "no-chain-reply-to" errors
-'
-
-test_expect_success $PREREQ 'no warning with an explicit --chain-reply-to' '
-	git send-email \
-	--dry-run \
-	--from="Example <nobody@example.com>" \
-	--to=nobody@example.com \
-	--chain-reply-to \
-	outdir/000?-*.patch 2>errors >out &&
-	! grep "no-chain-reply-to" errors
-'
-
-test_expect_success $PREREQ 'no warning with an explicit --no-chain-reply-to' '
-	git send-email \
-	--dry-run \
-	--from="Example <nobody@example.com>" \
-	--to=nobody@example.com \
-	--nochain-reply-to \
-	outdir/000?-*.patch 2>errors >out &&
-	! grep "no-chain-reply-to" errors
-'
-
-test_expect_success $PREREQ 'no warning with sendemail.chainreplyto = false' '
-	git config sendemail.chainreplyto false &&
-	git send-email \
-	--dry-run \
-	--from="Example <nobody@example.com>" \
-	--to=nobody@example.com \
-	outdir/000?-*.patch 2>errors >out &&
-	! grep "no-chain-reply-to" errors
-'
-
-test_expect_success $PREREQ 'no warning with sendemail.chainreplyto = true' '
-	git config sendemail.chainreplyto true &&
-	git send-email \
-	--dry-run \
-	--from="Example <nobody@example.com>" \
-	--to=nobody@example.com \
-	outdir/000?-*.patch 2>errors >out &&
-	! grep "no-chain-reply-to" errors
-'
-
 test_expect_success $PREREQ 'sendemail.to works' '
 	git config --replace-all sendemail.to "Somebody <somebody@ex.com>" &&
 	git send-email \