LU-10401 procs: print new line based on distro

LU-10401 procs: print new line based on distro

Since upstream changed to print new line in module
parameter callback instead of kernel self. So we
need test output of param_get_byte to determine
whether output the new line.
(upstream: v4.14-rc3-148-g96802e6b1dbf)
Also output filename and file content when test
failed for santy 133h.

Test-Parameters: trivial testlist=sanity clientdistro=el8.1 serverdistro=el8.1
Signed-off-by: Yang Sheng <ys@whamcloud.com>
Change-Id: Ibb5961e4de8b05d9dd59875e4fd38a42fa07d0d6
Reviewed-on: https://review.whamcloud.com/38699
Tested-by: jenkins <devops@whamcloud.com>
Tested-by: Maloo <maloo@whamcloud.com>
Reviewed-by: Jian Yu <yujian@whamcloud.com>
Reviewed-by: Andreas Dilger <adilger@whamcloud.com>