scsi: target: iblock: Trim line longer than 80 characters

Trim the line that is longer than 80 characters, which is inconsistent with
the rest of the code.

Link: https://lore.kernel.org/r/20210228055645.22253-3-chaitanya.kulkarni@wdc.com


Reviewed-by: Mike Christie <michael.christie@oracle.com>
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Signed-off-by: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>