Split long line in check_cluster --help

plugins/check_cluster.c

@@ -260,7 +260,8 @@ print_help(void)
 	printf ("\n");
 	printf ("%s\n", _("Examples:"));
 	printf (" %s\n", "check_cluster -s -d 2,0,2,0 -c @3:");
-	printf ("    %s\n", _("Will alert critical if there are 3 or more service data points in a non-OK state") );
+	printf ("    %s\n", _("Will alert critical if there are 3 or more service data points in a non-OK") );
+	printf ("    %s\n", _("state.") );
 
 	printf(UT_SUPPORT);
 }