The same FS/RAID/PT signature may be detected by more ways and on more
places on the device. The libblkid returns only the first detected
signature by default. This patch use blkid_probe_hide_range() to
re-scan device for all possible permutations of the same signature.
For example the default wipefs(8) output as well as --no-act output will
contains primary as well as backup GPT signature now.
Reported-by: Ruediger Meier <sweet_f_a@gmx.de> Signed-off-by: Karel Zak <kzak@redhat.com>