- Fixed mysql-test-run failures on window
- Fixed compiler warnings from my last push (sorry about that)
- Fixed that maria_chk --repair --extended works again
- Fixed compiler warnings about using not unitialized data

mysql-test/mysql-test-run.pl:
  Better output
mysql-test/suite/parts/inc/partition_check_drop.inc:
  Use remove_files_wildcard instead of rm
mysys/safemalloc.c:
  Fixed argument to printf
storage/maria/ma_cache.c:
  Don't give errors when running maria_chk
storage/maria/ma_dynrec.c:
  Don't give errors when running maria_chk
storage/maria/ma_rt_test.c:
  Added option --datadir for where to put logs and test data
storage/maria/ma_test1.c:
  Added option --datadir for where to put logs and test data
storage/maria/ma_test2.c:
  Added option --datadir for where to put logs and test data
storage/maria/maria_chk.c:
  If --datadir is used but --logdir is not, set --logdir from --datadir
  (this reflects how --help said how things should work)
storage/maria/maria_read_log.c:
  Changed short option for 'maria-log-dir-path' from -l to -h to be same as mysqld, maria_chk, ma_test1 etc..
storage/maria/unittest/ma_test_all-t:
  Allow one to specify --tmpdir for where to store logs and data
storage/xtradb/buf/buf0buf.c:
  Fixed compiler warnings about using not unitialized data
storage/xtradb/row/row0upd.c:
  Fixed compiler warnings about using not unitialized data
storage/xtradb/srv/srv0srv.c:
  Fixed compiler warnings about using not unitialized data