LU-10856 tests: remove deprecated lfs getstripe -M usage

LU-10856 tests: remove deprecated lfs getstripe -M usage

The "lfs getstripe -M" and "lfs mv -M" options are deprecated
since 2.9 and should not be used in the tests.

Clean up some of the nearby tests to match current coding style:
- lower-case local variable names
- tabs for indentation
- replace $GETSTRIPE/$SETSTRIPE with "$LFS getstripe/setstripe"

Test-Parameters: trivial testlist=replay-dual,sanity-flr
Test-Parameters: testlist=recovery-small,replay-single mdtcount=2
Test-Parameters: testlist=testlist=sanity,sanityn,sanity-hsm mdtcount=2
Signed-off-by: Andreas Dilger <andreas.dilger@intel.com>
Change-Id: Id86395a03379bef2de24dfa92642c928f51cab07
Reviewed-on: https://review.whamcloud.com/31808
Tested-by: Jenkins
Reviewed-by: James Nunez <james.a.nunez@intel.com>
Tested-by: Maloo <hpdd-maloo@intel.com>
Reviewed-by: Elena Gryaznova <c17455@cray.com>
Reviewed-by: Yang Sheng <yang.sheng@intel.com>
Reviewed-by: Oleg Drokin <oleg.drokin@intel.com>