Improve comments around connection_or_client_used()

src/or/connection_or.c

@@ -1743,8 +1743,9 @@ connection_or_client_learned_peer_id(or_connection_t *conn,
   return 0;
 }
 
-/** Return when a client used this, for connection.c, since client_used
- * is now one of the timestamps of channel_t */
+/** Return when we last used this channel for client activity (origin
+ * circuits). This is called from connection.c, since client_used is now one
+ * of the timestamps in channel_t */
 
 time_t
 connection_or_client_used(or_connection_t *conn)
@@ -1758,7 +1759,7 @@ connection_or_client_used(or_connection_t *conn)
 
 /** The v1/v2 TLS handshake is finished.
  *
- * Make sure we are happy with the person we just handshaked with.
+ * Make sure we are happy with the peer we just handshaked with.
  *
  * If they initiated the connection, make sure they're not already connected,
  * then initialize conn from the information in router.