collectdctl: mark as exit_usage as noreturn

diff --git a/src/collectdctl.c b/src/collectdctl.c
index febc998..7d3cbce 100644 (file)
--- a/src/collectdctl.c
+++ b/src/collectdctl.c
@@ -72,6 +72,7 @@
 extern char *optarg;
 extern int   optind;
 
+__attribute__((noreturn))
 static void exit_usage (const char *name, int status) {
   fprintf ((status == 0) ? stdout : stderr,
       "Usage: %s [options] <command> [cmd options]\n\n"