fix style

azdev/operations/linter/rules/command_rules.py

@@ -40,4 +40,4 @@ def group_delete_commands_should_confirm(linter, command_name):
 @CommandRule(LinterSeverity.HIGH)
 def no_wait_command(linter, command_name):
     if linter.support_no_wait(command_name):
-        raise RuleError('Deprecated command is expired and should be removed.')
+        raise RuleError('Deprecated command is expired and should be removed.')