GibberListener: clean listeners in error case of listen_tcp_af()
GibberListener: clean listeners in error case of listen_tcp_af()

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