Test case for bug #12859 group_concat in subquery cause incorrect not null.

into  mysql.com:/usr/home/ram/work/4.1.b4214

+ added option to dumpe rest of page after exnd of data

into  eel.(none):/home/jonas/src/mysql-4.1-push

into  mysql.com:/home/jimw/my/mysql-4.1-clean

into  eel.(none):/home/jonas/src/mysql-4.1-push

  Always abort if node failure occured between startTransaction and commit
  (can later be improved by wl#2610)

  make sure not to cut log to early 
  (specificly not use LCP with maxGciStarted that has not yet completed)

into  neptunus.(none):/home/msvensson/mysql/mysql-4.1

into  mysql.com:/usr/home/bar/mysql-4.1.b12363

into  mysql.com:/usr/home/bar/mysql-4.1.b12363

into  mysql.com:/users/lthalmann/bk/mysql-4.1-bug12542

into  neptunus.(none):/home/msvensson/mysql/mysql-4.1

into  mysql.com:/users/lthalmann/bk/mysql-4.1-bug12542

into  neptunus.(none):/home/msvensson/mysql/bug11316/my41-bug11316

into  mysql.com:/home/dlenev/src/mysql-4.1-bg12423

multi-threaded environment".

To avoid deadlocks between several simultaneously run account management 
commands (particularly between FLUSH PRIVILEGES/SET PASSWORD and GRANT
commands) we should always take table and internal locks during their
execution in the same order. In other words we should first open and lock
privilege tables and only then obtain acl_cache::lock/LOCK_grant locks.

into mysql.com:/Users/kent/mysql/bk/mysql-4.1

  Make sure mtr_kill_processes() is called with an array ref
  Corrected error string for STDERR redirect

 - Move clearing of expected errors

into  neptunus.(none):/home/msvensson/mysql/mysql-4.1

into  mysql.com:/home/jimw/my/mysql-4.1-clean

into  mysql.com:/home/jimw/my/mysql-4.1-clean

on Windows. (Bug #12325)