Annotate subsystem list with their levels.

src/app/main/subsystem_list.c

@@ -26,15 +26,15 @@
  **/
 const subsys_fns_t *tor_subsystems[] = {
   &sys_winprocess, /* -100 */
-  &sys_torerr,
-  &sys_wallclock,
-  &sys_threads,
-  &sys_logging,
-  &sys_time,
-  &sys_network,
-  &sys_compress,
-  &sys_crypto,
-  &sys_tortls,
+  &sys_torerr, /* -100 */
+  &sys_wallclock, /* -99 */
+  &sys_threads, /* -95 */
+  &sys_logging, /* -90 */
+  &sys_time, /* -90 */
+  &sys_network, /* -90 */
+  &sys_compress, /* -70 */
+  &sys_crypto, /* -60 */
+  &sys_tortls, /* -50 */
 };
 
 const unsigned n_tor_subsystems = ARRAY_LENGTH(tor_subsystems);