CRM.help with field names having single quotes

Creating a custom field with a single quote in its name (in French), CRM.help causes a "SyntaxError: unterminated string literal" when the help icon for that field is clicked.

How to reproduce:

• create a field called "L'apostrophe" applied to a contact record
• on a contact record, click on the help icon for that field.

For example:
https://sandbox.drupal.civicrm.org/civicrm/contact/add?reset=1&context=search&action=update&cid=328

I checked in CRM/Core/Smarty/plugins/function.help.php, tried things such as:
$name = addslashes($name), but it didn't do much good, the string seems to be truncated after a single quote.