This allows to set the option on the command line, i.e. "-display
gtk,zoom-to-fit={on,off}", overriding the default chosen by qemu.
Signed-off-by: NGerd Hoffmann <kraxel@redhat.com>
Reviewed-by: NMarkus Armbruster <armbru@redhat.com>
Message-id: 20180827095620.26774-1-kraxel@redhat.com