don't mix tabs and spaces. Fixes #7966

src/common/zeroconf/zeroconf_avahi.py

@@ -285,8 +285,8 @@ class Zeroconf:
         state = self.server.GetState()
         if state == self.avahi.SERVER_RUNNING:
             if self.create_service():
-            	self.announced = True
-            	return True
+                self.announced = True
+                return True
             return False
 
     def remove_announce(self):