No need for semicolon after ARGEND

This is also the style used in Plan 9.
diff --git a/cron.c b/cron.c
index cd03b9b..4513dd7 100644
--- a/cron.c
+++ b/cron.c
@@ -426,7 +426,7 @@
 		break;
 	default:
 		usage();
-	} ARGEND;
+	} ARGEND
 
 	if (argc > 0)
 		usage();
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