F21: gimp generates "Rejected send message...."

[sean darcy]

If I print in gimp syslog gets:

[system] Rejected send message, 10 matched rules; type="method_return", 
sender=":1.3" (uid=70 pid=788 comm="avahi-daemon: starting up ") 
interface="(unset)" member="(unset)" error name="(unset)" 
requested_reply="0" destination=":1.169" (uid=1001 pid=13586 
comm="/usr/lib64/gimp/2.0/plug-ins/print -gimp 15 14 -ru")

Where's this coming from ?

sean