LU-8998 utils: allow "--component-*" to be abbreviated

LU-8998 utils: allow "--component-*" to be abbreviated

Allow "--component-foo" arguments to be abbreviated to "--comp-foo"
to simplify userspace, especially for options like "--comp-flags"
that do not have a short option.

Test-Parameters: trivial
Signed-off-by: Andreas Dilger <andreas.dilger@intel.com>
Change-Id: I8c434dd68c042efefc2df93d0f2d7b9bc33ebbe5
Reviewed-on: https://review.whamcloud.com/26699
Tested-by: Jenkins
Tested-by: Maloo <hpdd-maloo@intel.com>
Reviewed-by: Niu Yawei <yawei.niu@intel.com>
Reviewed-by: Jinshan Xiong <jinshan.xiong@intel.com>
Reviewed-by: Oleg Drokin <oleg.drokin@intel.com>