LU-6142 util: Fix style issues for parser.c

LU-6142 util: Fix style issues for parser.c

This patch fixes issues reported by checkpatch
for file libcfs/libcfs/util/parser.c

Change-Id: I6e5f4d40634e4b3a86640fb2793a70cfd646c725
Signed-off-by: Arshad Hussain <arshad.super@gmail.com>
Reviewed-on: https://review.whamcloud.com/35384
Tested-by: jenkins <devops@whamcloud.com>
Reviewed-by: Shaun Tancheff <stancheff@cray.com>
Reviewed-by: Andreas Dilger <adilger@whamcloud.com>
Tested-by: Maloo <maloo@whamcloud.com>
Reviewed-by: James Simmons <jsimmons@infradead.org>