Code review comment for lp:~akopytov/percona-xtrabackup/bug1166888-2.1

This results in double my_thread_init() call:

log_copying_thread(
 void* arg __attribute__((unused)))
{
 ulint counter = 0;

 /*
   Initialize mysys thread-specific memory so we can
   use mysys functions in this thread.
 */
 my_thread_init();

 ut_a(dst_log_file != NULL);

 /*
   Initialize mysys thread-specific memory so we can
   use mysys functions in this thread.
 */
 my_thread_init();

Also it's not an automerge, but just a merge.