LU-13718 tests: add LU numbers to skipped tests

LU-13718 tests: add LU numbers to skipped tests

Some tests in ALWAYS_EXCEPT variable do not contain LU- numbers in
description. Also tests formatting inconsistent (mixed tabs and
spaces in one line).

This patch adds missing numbers and corrects formatting. This
improvement reduce time to find reasons why test was skipped and let
parse code to build table with skipped tests list.

Test-Parameters: trivial testlist=sanity-lfsck mdscount=2 mdtcount=8 osscount=1 ostcount=4
Signed-off-by: Vikentsi Lapa <vlapa@whamcloud.com>
Change-Id: Iada59d1e01b8ecd07af91157abef483df7715178
Reviewed-on: https://review.whamcloud.com/39217
Reviewed-by: James Nunez <jnunez@whamcloud.com>
Tested-by: jenkins <devops@whamcloud.com>
Tested-by: Maloo <maloo@whamcloud.com>
Reviewed-by: Wei Liu <sarah@whamcloud.com>
Reviewed-by: Oleg Drokin <green@whamcloud.com>