[klibc] losetup: use stdout and return 0 for -h

ported to klibc losetup version from util-linux
108591d2b7860ca0b8d27d114bed1e504a31fa72,
also add -h option. -maks

Reported-by: Kamalesh Babulal <kamalesh@linux.vnet.ibm.com>
Signed-off-by: Karel Zak <kzak@redhat.com>
Signed-off-by: maximilian attems <max@stro.at>
1 file changed