+/* Returns true if ARG is "unlimited". */
+
+static int
+is_unlimited_literal (const char *arg)
+{
+ size_t len = sizeof ("unlimited") - 1;
+
+ arg = skip_spaces_const (arg);
+
+ return (strncmp (arg, "unlimited", len) == 0
+ && (isspace (arg[len]) || arg[len] == '\0'));
+}
+
+