SKS.SKS.get_interfaces. Fix tagged vlan none on command.

sa/profiles/SKS/SKS/get_interfaces.py

@@ -222,7 +222,12 @@ class Script(BaseScript):
                         sub["untagged_vlan"] = int(i[4])
                     elif i[1] == "Trunk":
                         sub["untagged_vlan"] = int(i[2])
-                        sub["tagged_vlans"] = self.expand_rangelist(i[3])
+                        if i[3] != "none":
+                            try:
+                                sub["tagged_vlans"] = self.expand_rangelist(i[3])
+                            except ValueError:
+                                self.logger.error("Bad tagged vlans format on port: %s", ifname)
+                                sub["tagged_vlans"] = []
                     else:
                         # Need more examples
                         raise self.NotSupportedError()