Buffalo uses the TRX format with a different magic, add support for
this.
It is planned to send these patches upstream.
Cc: Rafał Miłecki <rafal@milecki.pl>
Signed-off-by: INAGAKI Hiroshi <musashino.open@gmail.com>
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
