build; remove binary

src/id.c

@@ -4,7 +4,7 @@
 #include <stdlib.h> /* stderr, stdout */
 #include <sysexits.h>
 #include <unistd.h> /* getuid(2), geteuid(2), getopt(3) */
-#include "noargvzero.h"
+#include "usefulmacros.h"
 
 int main(int argc, char *argv[]){
 	int c;