More trailing whilespace removal

sched/sem_holder.c

@@ -509,7 +509,7 @@ static int sem_restoreholderprio(FAR struct semholder_s *pholder, FAR sem_t *sem
           /* The holder thread has been boosted to a higher priority than the
            * waiter task.  The pending priority should be in the list (unless it
            * was lost because of of list overflow or because the holder was
-           * reporioritize again unbeknownst to the priority inheritance logic).
+           * reprioritize again unbeknownst to the priority inheritance logic).
            *
            * Search the list for the matching priority.
            */