LU-16284 utils: lfs getstripe follows symlink

LU-16284 utils: lfs getstripe follows symlink

'lfs getstripe' prints the information of symlink target by default.
With '--no-follow' option it prints the information of symlink itself.

Signed-off-by: Lei Feng <flei@whamcloud.com>
Test-Parameters: trivial
Change-Id: I6cef01af5bb2235bdcbf0b5c99af4b9ed5869515
Reviewed-on: https://review.whamcloud.com/c/fs/lustre-release/+/49003
Tested-by: jenkins <devops@whamcloud.com>
Tested-by: Maloo <maloo@whamcloud.com>
Reviewed-by: Andreas Dilger <adilger@whamcloud.com>
Reviewed-by: Jian Yu <yujian@whamcloud.com>
Reviewed-by: Oleg Drokin <green@whamcloud.com>