in ma_rt_test -M (BUG#36321); keyinfo/recinfo/keyseg had non-initialized parts.
maria_scan() was not wrapped in maria_scan_init()/end() so "ma_rt_test -M" found no rows.
Preparing for inclusion into ma_test_all-t and ma_test_recovery.pl (still prevented by
BUG#37307 "Maria: R-tree unit test produces corrupted table").

storage/maria/ma_rt_test.c:
  Some members of keyinfo, recinfo, keyseg had non-initialized parts, led to Valgrind errors,
  and also segmentation fault when running with -M (=BLOCK_RECORD) (BUG#36321).
  We now bzero them like they are in mi_test1.
  Other problems:
  - maria_scan() was not wrapped in maria_scan_init()/end() so "ma_rt_test -M" found no rows.
  - --silent had almost no effect, now it really silences normal output.
  - Some errors were going to stdout, they now go to stderr.
  Added option for testing versioning, to fit well into ma_test_all-t.
storage/maria/unittest/ma_test_all-t:
  preparing for running ma_rt_test when ma_rt_test remaining bugs are fixed
storage/maria/unittest/ma_test_recovery.pl:
  preparing for running ma_rt_test when ma_rt_test remaining bugs are fixed
storage/myisam/rt_test.c:
  Some members of keyinfo, recinfo, keyseg were not initialized, led to Valgrind errors.
  We now bzero them like they are in mi_test1.