Fix bad metadata formatting

Fix bad metadata formatting

Certain operations (Detail.c mainly) would print out the metadata of
an array in a format that the scan operation in super0.c and super1.c
would later reject as unknown when it was found in the mdadm.conf file.
Use a consistent format, but also modify the super0 and super1 match
methods to accept the other format without complaint.

Signed-off-by: Doug Ledford <dledford@redhat.com>
Signed-off-by: NeilBrown <neilb@suse.de>