Remove trailing spaces at the end of lines.

net/ipforward/ipfwd_poll.c

@@ -60,7 +60,7 @@
  *
  * Description:
  *   Generic output conversion hook.  Only needed for IEEE802.15.4 (and
- *   other, non-standard packet radios) for now but this is a point where 
+ *   other, non-standard packet radios) for now but this is a point where
  *   support for other conversions may be provided.
  *
  ****************************************************************************/

net/route/ramroute.h

@@ -200,7 +200,7 @@ void net_freeroute_ipv6(FAR struct net_route_ipv6_s *route);
  * Name: (various low-level list operations)
  *
  * Description:
- *   Perform operations on in-memory routing table lists 
+ *   Perform operations on in-memory routing table lists
  *
  * Input Parameters:
  *   entry - A pointer to the new entry to add to the list