staging: lustre: ptlrpc: fix indentation

Fix the following type of checkpatch warning to comply with coding
style:
WARNING: suspect code indent for conditional statements

Also join a debug string split across lines, as it was on the same lines
as the other changes anyway. And reformat some comments in the kernel
coding style for the same reason.

Signed-off-by: Kristina Martsenko <kristina.martsenko@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>