Update copyright messages for files updated in 2016, excluding
trivial patches.

Add trivial patches to updatecw.sh script exclude list.  Improve
the output of patches causing the most changes to include the
patch summary instead of just the hash.

Test-Parameters: trivial
Signed-off-by: Andreas Dilger <andreas.dilger@intel.com>
Change-Id: Ifb098e8126f698ea975e10ba13f5f47c449ae4ad
Reviewed-on: https://review.whamcloud.com/24233


Reviewed-by: Oleg Drokin <oleg.drokin@intel.com>
Tested-by: Oleg Drokin <oleg.drokin@intel.com>