Remove some trailing whitespaces.

Author: vaintroub

sql/threadpool.h

@@ -138,7 +138,7 @@ struct TP_pool
 #ifdef _WIN32
 struct TP_pool_win:TP_pool
 {
-  TP_pool_win(); 
+  TP_pool_win();
   virtual int init();
   virtual ~TP_pool_win();
   virtual TP_connection *new_connection(CONNECT *c);

sql/threadpool_common.cc

@@ -60,24 +60,24 @@ static inline TP_connection *get_TP_connection(THD *thd)
 /*
   Worker threads contexts, and THD contexts.
   =========================================
-  
-  Both worker threads and connections have their sets of thread local variables 
-  At the moment it is mysys_var (this has specific data for dbug, my_error and 
+
+  Both worker threads and connections have their sets of thread local variables
+  At the moment it is mysys_var (this has specific data for dbug, my_error and
   similar goodies), and PSI per-client structure.
 
   Whenever query is executed following needs to be done:
 
   1. Save worker thread context.
   2. Change TLS variables to connection specific ones using thread_attach(THD*).
-     This function does some additional work , e.g setting up 
+     This function does some additional work , e.g setting up
      thread_stack/thread_ends_here pointers.
   3. Process query
   4. Restore worker thread context.
 
-  Connection login and termination follows similar schema w.r.t saving and 
-  restoring contexts. 
+  Connection login and termination follows similar schema w.r.t saving and
+  restoring contexts.
 
-  For both worker thread, and for the connection, mysys variables are created 
+  For both worker thread, and for the connection, mysys variables are created
   using my_thread_init() and freed with my_thread_end().
 
 */
@@ -154,7 +154,7 @@ static void thread_attach(THD* thd)
 }
 
 /*
-  Determine connection priority , using current 
+  Determine connection priority , using current
   transaction state and 'threadpool_priority' variable value.
 */
 static TP_PRIORITY get_priority(TP_connection *c)
@@ -289,7 +289,7 @@ static void threadpool_remove_connection(THD *thd)
   delete thd;
 
   /*
-    Free resources associated with this connection: 
+    Free resources associated with this connection:
     mysys thread_var and PSI thread.
   */
   my_thread_end();
@@ -323,8 +323,8 @@ static int threadpool_process_request(THD *thd)
 
   if (thd->killed >= KILL_CONNECTION)
   {
-    /* 
-      killed flag was set by timeout handler 
+    /*
+      killed flag was set by timeout handler
       or KILL command. Return error.
     */
     retval= 1;