Closed requested to merge bg/dhcp-helper-reconnect-rh1821594 into master
dhcp-helper: retry in case of failure connecting to D-Bus unix socket
Connecting to the unix socket can fail with EAGAIN if there are too many pending connections and the server can't accept them in time before reaching backlog capacity. Ideally the server should increase the backlog length, but GLib doesn't provide a way to change it for a GDBus server. Retry for up to 5 seconds in case of failure.