gibber-oob-file-transfer: add a FIXME about <desc>
gibber-oob-file-transfer: add a FIXME about <desc>

freedesktop-unofficial-mirror/telepathy__telepathy-salut,freedesktop-unofficial-mirror/telepathy__telepathy-salut,freedesktop-unofficial-mirror/telepathy__telepathy-salut,freedesktop-unofficial-mirror/telepathy__telepathy-salut