Remove some trailing whitespaces.

sql/threadpool_generic.cc

@@ -167,7 +167,6 @@ static void print_pool_blocked_message(bool);
  descriptors can be retrieved from native_events array, using
  native_event_get_userdata() function.
 
- 
  On Linux: epoll_wait()
 */
 
@@ -767,7 +766,6 @@ static TP_connection_generic * listener(worker_thread_t *current_thread,
      we suspect flood of network events and listener stays, Otherwise, it
      handles a query.
 
-     
      Q2: If queue is not empty, how many workers to wake?
 
      Solution:
@@ -868,7 +866,6 @@ static int create_worker(thread_group_t *thread_group, bool due_to_stall)
     goto end;
   }
 
-  
   err= mysql_thread_create(key_worker_thread, &thread_id,
          thread_group->pthread_attr, worker_main, thread_group);
   if (!err)
@@ -1300,15 +1297,13 @@ void wait_end(thread_group_t *thread_group)
 }
 
 
-
-
 TP_connection * TP_pool_generic::new_connection(CONNECT *c)
 {
   return new (std::nothrow) TP_connection_generic(c);
 }
 
 /**
-  Add a new connection to thread pool..
+  Add a new connection to thread pool
 */
 
 void TP_pool_generic::add(TP_connection *c)
@@ -1748,6 +1743,4 @@ static void print_pool_blocked_message(bool max_threads_reached)
   }
 }
 
-
-
 #endif /* HAVE_POOL_OF_THREADS */

sql/threadpool_win.cc

@@ -322,7 +322,7 @@ static void pre_callback(PVOID context, PTP_CALLBACK_INSTANCE instance)
 
 
 /*
-  Decrement number of threads when a thread exits . 
+  Decrement number of threads when a thread exits.
   On Windows, FlsAlloc() provides the thread destruction callbacks.
 */
 static VOID WINAPI thread_destructor(void *data)