Docker (libervia_cont, sat, sat_nomedia): removed port 28915 which was used for SI File Transfer and is not used anymore (it may reappear in the futur if force_port is reimplemented)

#!/bin/sh
# account domain is set, then sat is launched with D-Bus activated
chmod a+w /etc/hosts
su -c "set_account_domain && dbus-launch /usr/bin/sat $@" sat