Staging: lustre: lustre: ldlm: Concatenate strings into single string

This patch concatenate two consecutive strings into one, addressing checkpatch.pl warning:
 "Consecutive strings are generally better as a single string"

Signed-off-by: Haneen Mohammed <hamohammed.sa@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>