completion: use __gitcomp_builtin for format-patch

diff --git a/git-send-email.perl b/git-send-email.perl
index 2be5dac337a0e2f4a0ea1538c7873aa43382cb04..ed0714eaaa2e90f6db09404d111f513cbfc50296 100755 (executable)
--- a/git-send-email.perl
+++ b/git-send-email.perl
@@ -119,6 +119,11 @@ sub usage {
        exit(1);
 }
 
+sub completion_helper {
+    print Git::command('format-patch', '--git-completion-helper');
+    exit(0);
+}
+
 # most mail servers generate the Date: header, but not all...
 sub format_2822_time {
        my ($time) = @_;
@@ -311,6 +316,7 @@ sub signal_handler {
 # needing, first, from the command line:
 
 my $help;
+my $git_completion_helper;
 my $rc = GetOptions("h" => \$help,
                     "dump-aliases" => \$dump_aliases);
 usage() unless $rc;
@@ -373,9 +379,11 @@ sub signal_handler {
                    "no-xmailer" => sub {$use_xmailer = 0},
                    "batch-size=i" => \$batch_size,
                    "relogin-delay=i" => \$relogin_delay,
+                   "git-completion-helper" => \$git_completion_helper,
         );
 
 usage() if $help;
+completion_helper() if $git_completion_helper;
 unless ($rc) {
     usage();
 }