update comment a bit

inventory_provider/tasks/worker.py

@@ -1124,8 +1124,9 @@ def transform_ims_data(data):
                 elif 'sid' in details:
                     if len(circuits) > 1:
                         if port_circuit != circ:
-                            # we don't know which circuit
-                            # to give the SID in this case, so skip
+                            # if this is not the physical port circuit
+                            # related to this port, then we don't want to
+                            # assign the SID to this circuit, so skip.
                             continue
 
                     # assign the SID from the port to this circuit