staging/lustre/lnet/selftest: Remove unnecessary spaces in brw_test.c

Remove spaces between function names and open parentheses to
eliminate warnings generated by checkpatch.pl and meet kernel
coding standards.

Signed-off-by: Lisa Nguyen <lisa@xenapiadmin.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>