LU-930 utils: add --lazy option to 'lfs find' usage

LU-930 utils: add --lazy option to 'lfs find' usage

The usage message for "lfs find" does not show the "--lazy"
option to allow checking LSOM data from the MDT instead of
getting size and blocks from the OSTs.

Also sort the options in the "lfs find" usage to be roughly
in alphabetical order.

Test-Parameters: trivial
Fixes: 11aa7f8704c4 ("LU-11367 som: integrate LSOM with lfs find")
Signed-off-by: Andreas Dilger <adilger@whamcloud.com>
Change-Id: Iafea18b2d74d889bb258f2be4b3af0f9203ebbe5
Reviewed-on: https://review.whamcloud.com/45816
Tested-by: jenkins <devops@whamcloud.com>
Tested-by: Maloo <maloo@whamcloud.com>
Reviewed-by: Yingjin Qian <qian@ddn.com>
Reviewed-by: Jian Yu <yujian@whamcloud.com>
Reviewed-by: Olaf Faaland-LLNL <faaland1@llnl.gov>
Reviewed-by: Oleg Drokin <green@whamcloud.com>