Fedora 30 : flatpak (2019-2fd70709a5)

Update to 1.2.4 - seccomp: Only compare the low 32bit of the TIOCSTI ioctl args. - Support multiple nvidia cards on the machine - Fix support for systems where XDGRUNTIMEDIR is /var/run which is a symlink like gentoo. - Fix potential crash when updating apps. - flatpak list --arch now works...