LU-10467 fid: style cleanups in seq_client_alloc_meta()

LU-10467 fid: style cleanups in seq_client_alloc_meta()

Prior to code changes in seq_client_alloc_meta, make indents
consistently tabs, and change "env != NULL" to "env"

Test-Parameters: trivial
Signed-off-by: Mr NeilBrown <neilb@suse.com>
Change-Id: If72d737f843a5f6e56ef82aabb7a779b358f4382
Reviewed-on: https://review.whamcloud.com/35963
Tested-by: jenkins <devops@whamcloud.com>
Tested-by: Maloo <maloo@whamcloud.com>
Reviewed-by: James Simmons <jsimmons@infradead.org>
Reviewed-by: Arshad Hussain <arshad.super@gmail.com>
Reviewed-by: Shaun Tancheff <stancheff@cray.com>
Reviewed-by: Oleg Drokin <green@whamcloud.com>