ctdb-tools: Produce machine readable output with new function printm()

ctdb-tools: Produce machine readable output with new function printm()

printm() is a printf(3) replacement and must be used to printing any
machine readable output.  It currently just calls vprintf(3).  Later
it will change the field delimiter.

Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
(cherry picked from commit fbacbb9c7868e22c04980af3602bae59dd5fe34d)

Conflicts:
	ctdb/tools/ctdb.c