LU-6142 tests: Fix style issues for statmany.c

LU-6142 tests: Fix style issues for statmany.c

This patch fixes issues reported by checkpatch
for file lustre/tests/statmany.c

Test-Parameters: trivial testlist=sanityn,dom-performance,replay-dual mdssizegb=20
Signed-off-by: Arshad Hussain <arshad.hussain@aeoncomputing.com>
Change-Id: Ieb2e8aff7d45c7de3ff5035c9c00dafe82b27d31
Reviewed-on: https://review.whamcloud.com/36386
Reviewed-by: Andreas Dilger <adilger@whamcloud.com>
Reviewed-by: Petros Koutoupis <petros.koutoupis@hpe.com>
Reviewed-by: James Simmons <jsimmons@infradead.org>
Reviewed-by: Shaun Tancheff <shaun.tancheff@hpe.com>
Tested-by: jenkins <devops@whamcloud.com>
Tested-by: Maloo <maloo@whamcloud.com>
Reviewed-by: Oleg Drokin <green@whamcloud.com>