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

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

Error and warning messages in lfs_setstripe() 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: I578e1adb94736a3d22aee4a85a3d7994fc78c6f0
Reviewed-on: https://review.whamcloud.com/28049
Tested-by: Jenkins
Tested-by: Maloo <hpdd-maloo@intel.com>
Reviewed-by: John L. Hammond <john.hammond@intel.com>
Reviewed-by: Jian Yu <jian.yu@intel.com>
Reviewed-by: Oleg Drokin <oleg.drokin@intel.com>