LU-15934 lod: clear up the message

LU-15934 lod: clear up the message

Print out the precise info while llog context error.

Lustre-change: https://review.whamcloud.com/49528
Lustre-commit: 9882d4e933fd8cdbc4a9bc8bf6b29655009f7e03

Signed-off-by: Yang Sheng <ys@whamcloud.com>
Change-Id: I492201cd3ae5eb39ad34f3a873d7bb346b52430f
Reviewed-by: Lai Siyao <lai.siyao@whamcloud.com>
Reviewed-by: Andreas Dilger <adilger@whamcloud.com>
Reviewed-on: https://review.whamcloud.com/c/ex/lustre-release/+/51555
Tested-by: jenkins <devops@whamcloud.com>
Tested-by: Maloo <maloo@whamcloud.com>