Fix a warning message. (Found by rransom)

src/or/config.c

@@ -4941,7 +4941,7 @@ parse_client_port_config(smartlist_t *out,
        mainport = (int)tor_parse_long(ports->value, 10, 0, 65535, &ok, NULL);
        if (!ok) {
          log_warn(LD_CONFIG, "%sListenAddress can only be used with a single "
-                  "%sPort with value \"auto\" or 65535.", portname, portname);
+                  "%sPort with value \"auto\" or 1-65535.", portname, portname);
          return -1;
        }
      }