fix typos and whitespace

src/feature/client/entrynodes.c

@@ -3850,7 +3850,7 @@ guards_retry_optimistic(const or_options_t *options)
  * Check if we are missing any crucial dirinfo for the guard subsystem to
  * work. Return NULL if everything went well, otherwise return a newly
  * allocated string with an informative error message. In the latter case, use
- * the genreal descriptor information <b>using_mds</b>, <b>num_present</b> and
+ * the general descriptor information <b>using_mds</b>, <b>num_present</b> and
  * <b>num_usable</b> to improve the error message. */
 char *
 guard_selection_get_err_str_if_dir_info_missing(guard_selection_t *gs,

src/feature/nodelist/nodelist.c

@@ -959,6 +959,7 @@ nodelist_ensure_freshness(const networkstatus_t *ns)
     nodelist_set_consensus(ns);
   }
 }
+
 /** Return a list of a node_t * for every node we know about.  The caller
  * MUST NOT modify the list. (You can set and clear flags in the nodes if
  * you must, but you must not add or remove nodes.) */

src/feature/relay/selftest.c

@@ -277,7 +277,7 @@ router_do_orport_reachability_checks(const routerinfo_t *me,
     if (!orport_reachable) {
       /* Only log if we are actually doing a reachability test to learn if our
        * ORPort is reachable. Else, this prints a log notice if we are simply
-       * opening a bandwidth testing circuit even do we are reachable. */
+       * opening a bandwidth testing circuit even though we are reachable. */
       inform_testing_reachability(&ap->addr, ap->port, false);
     }