proj: Add optind to getopt

proj/intercept/src/intercept.c

@@ -1226,7 +1226,7 @@ int sym(getopt)(const int argc, char *const argv[], const char *shortopts) {
         else if_invalid(getopt)
     }
     const int ret = __real_getopt(argc, argv, shortopts);
-    msg("return %i", ret);
+    msg("return %i; optind %i", ret, optind);
     return ret;
 }