help: make help_unknown_ref() NORETURN

diff --git a/builtin/verify-tag.c b/builtin/verify-tag.c
index 6fa04b751ac1d6ae18b8a42e700e2cefa6427a41..f45136a06ba76077891d9e5fae545ee8c297ddff 100644 (file)
--- a/builtin/verify-tag.c
+++ b/builtin/verify-tag.c
@@ -10,7 +10,6 @@
 #include "builtin.h"
 #include "tag.h"
 #include "run-command.h"
-#include <signal.h>
 #include "parse-options.h"
 #include "gpg-interface.h"
 #include "ref-filter.h"