[avahi] path to the dbus socket

[Sebastien Estienne]

hello,

i noticed that when we use a non standart path for the dbus socket:
eg: /usr/local/var/run/dbus/ instead of /var/run/dbus/

avahi-browse fail with this error message:
Failed to create client object: An unexpected DBUS error occured

i guess it's related to libavahi-client, but i think we should try to
error on a more verbose message explaining that the socket wasn't
found or something.

dunno what is possible?
--
Sebastien Estienne