Steps to reproduce the issue

Joomla 3.4.4 with french translation in the administrator interface.
Créate a menu link to an article using administrator/com_menus.

Expected result

Buttons that work ! :-)

Actual result

Buttons in the main toolbar (Save, Save to new, Close etc..) non functional because of a javasript error.

Uncaught SyntaxError: missing ) after argument list in /administrator/index.php?option=com_menus&view=item&layout=edit&id=117 Line 128

This is the line 128 : You can see the un escaped apostrophy in the name attribute of the <iframe> tag. This prematurely closes the string. It concerns the "Select an article" button used to choose which article the menu item points to.

modalBody.prepend('<iframe class="iframe" src="index.php?option=com_content&amp;view=articles&amp;layout=modal&amp;tmpl=component&amp;function=jSelectArticle_jform_request_id&amp;b85b96ca0b5914cb50fc400f9f4aaaef=1" name="Sélectionner ou changer l'article" height="300px" width="800px"></iframe>');

System information (as much as possible)

Version de la base de données 5.5.43
Interclassement de la base de données latin1_swedish_ci
Version de PHP 5.4.43
Serveur web Apache
Serveur web pour interface PHP apache2handler
Version de Joomla Joomla! 3.4.4 Stable [ Ember ] 8-September-2015 21:30 GMT
Version de la plateforme Joomla! Joomla Platform 13.1.0 Stable [ Curiosity ] 24-Apr-2013 00:00 GMT

Additional comments

I removed the apostrophy from the translation string in /administrator/language/fr-FR/com_content.ini line 24. The buttons work, but this is obvoiusly just a temporary workaround.