+ if (isdigit(*arg))
+ inherit_exclude_levels = atoi(arg);
+ else if (*arg == '.') {
-+ if (!arg[1])
++ if (!*++arg)
+ inherit_exclude_levels = 0;
-+ else if (arg[1] == '.') {
-+ inherit_exclude_levels = 0;
-+ arg--;
-+ do {
++ else if (*arg == '.') {
++ inherit_exclude_levels = 1;
++ arg++;
++ while (strncmp(arg, "/..", 3) == 0) {
+ inherit_exclude_levels++;
+ arg += 3;
-+ } while (strncmp(arg, "/..", 3) == 0);
++ }
+ if (*arg)
+ inherit_exclude_levels = -1;
+ }