Manually applying the patch for BUG40954 "Crash in MyISAM index code with concurrency test using partitioned tables"
so that it stops crashing pushbuild2/5.1-maria and we can see the other failures which it hid.

mysql-test/r/partition.result:
  Manually applying the patch for BUG40954 "Crash in MyISAM index code with concurrency test using partitioned tables"
mysql-test/t/partition.test:
  Manually applying the patch for BUG40954 "Crash in MyISAM index code with concurrency test using partitioned tables"
sql/ha_partition.cc:
  Manually applying the patch for BUG40954 "Crash in MyISAM index code with concurrency test using partitioned tables"