Fix typo in commands.errors (self-->this)

This typo caused undesired behavior when deleting a deleted network

Bug #3547

kamaki/cli/commands/errors.py

@@ -230,7 +230,7 @@ class cyclades(object):
             except ClientError as ce:
                 if network_id and ce.status == 400:
                     msg = 'Network with id %s does not exist' % network_id,
-                    raiseCLIError(ce, msg, details=self.about_network_id)
+                    raiseCLIError(ce, msg, details=this.about_network_id)
                 elif network_id or ce.status == 421:
                     msg = 'Network with id %s is in use' % network_id,
                     raiseCLIError(ce, msg, details=[

kamaki/clients/cyclades/__init__.py

@@ -200,7 +200,7 @@ class CycladesClient(CycladesRestClient):
             if err.status == 421:
                 err.details = [
                     'Network may be still connected to at least one server']
-            raise err
+            raise
 
     def connect_server(self, server_id, network_id):
         """ Connect a server to a network