[PATCH v3 1/3] send-email: terminate --git-completion-helper with LF

Unlike other Git subcommands, "git send-email" leaves its output an
incomplete line when "--git-completion-helper" is asked.  Be consistent
by terminating the message with LF here.

Signed-off-by: Thiago Perrotta <redacted>
---
 git-send-email.perl | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/git-send-email.perl b/git-send-email.perl
index e65d969d0b..d1731c1755 100755
--- a/git-send-email.perl
+++ b/git-send-email.perl

@@ -114,7 +114,7 @@ sub usage {
 }
 
 sub completion_helper {
-    print Git::command('format-patch', '--git-completion-helper');
+    print Git::command('format-patch', '--git-completion-helper'), "\n";
     exit(0);
 }
 

-- 
2.33.0