Explanation text missing $arg

On the edit views page under arguments it says:

"Enter the URL to use for this view in the form of 'dir/dir'. Do not begin or end the URL with a /. Example: 'view/tracker'. This is required if providing a page view. You can also add as a placeholder for arguments passed in the URL, for example 'user//tracker' or 'view/taxonomy/'."

The word $arg is missing in there a couple of times because it's not escaped in views_ui.module, on line 750.