Audit printf(1)

Not a lot to do here, I wrote this less than a month ago. The only
thing I missed was the newline before return.

printf.c

@@ -148,5 +148,6 @@ main(int argc, char *argv[])
 		if (argi >= argc)
 			cooldown = 1;
 	}
+
 	return 0;
 }