I just ran into this little problem with Drupal's views filter, that when you want to translate the label that shows everything it doesn't work through the translation interface. So i searched on Google and found a link to a post about it on the Drupal forums.
Go to Views -> Tools and set <Any> to - Any -, now you can go to the translation interface of Drupal and translate it to what ever you like.
Source: Translate <Any> trought the translation interface in Drupal.
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