Make config -x <kernel> only return non-zero characters, so that:
Make config -x <kernel> only return non-zero characters,
so that:

	config -x <kernel> | grep <something>

just works.

Reported by:	Danny Braniss <danny@cs.huji.ac.il>

jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase