staging: lustre: echo_client: Use kernel style spacing

This patch fixes the code style space issues identified by checkpatch.pl in drivers/staging/lustre/lustre/obdecho/echo_client.c

Signed-off-by: Yogeswaran Thulasidoss <yogeeswaran@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>