LU-5170 lfs: Standardize error messages in adjust_first_extent

LU-5170 lfs: Standardize error messages in adjust_first_extent

Error and warning messages in adjust_first_extent() 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: I9240fbce1f8fb065a17eaff1e4bbda70b4a5b0c9
Reviewed-on: https://review.whamcloud.com/28304
Tested-by: Jenkins
Tested-by: Maloo <hpdd-maloo@intel.com>
Reviewed-by: John L. Hammond <john.hammond@intel.com>
Reviewed-by: Andreas Dilger <andreas.dilger@intel.com>