LU-5170 lfs: Standardize error messages in lfs_check()

LU-5170 lfs: Standardize error messages in lfs_check()

Error messages in lfs_check() are updated to a standard format.
Messages are prefixed with the name of the utility and the command
that caused the error.  User-provided values are delimited with
single quotes.

Test-Parameters: trivial
Signed-off-by: Steve Guminski <stephenx.guminski@intel.com>
Change-Id: Ife0fa0b5f22f1099757c38d07b1827e26182426e
Reviewed-on: https://review.whamcloud.com/30666
Tested-by: Jenkins
Reviewed-by: Andreas Dilger <andreas.dilger@intel.com>
Tested-by: Maloo <hpdd-maloo@intel.com>
Reviewed-by: Jian Yu <jian.yu@intel.com>