No reason to treat it different from other commands. Move it to
qemu-io-cmds.c, adapt the coding style and register it like any other
command.
Signed-off-by: NKevin Wolf <kwolf@redhat.com>
Reviewed-by: NEric Blake <eblake@redhat.com>
Signed-off-by: NStefan Hajnoczi <stefanha@redhat.com>