Fixed "File name too long" error message

Releasing 0.2.22 patch version of the gem.

Paired with: Antoine Musso
Example:
https://integration.wikimedia.org/ci/view/BrowserTests/job/browsertests-
UniversalLanguageSelector-commons.wikimedia.beta.wmflabs.org-linux-firef
ox/13/consoleFull

Change-Id: Id2fd1fa5125efc8a047422631610781d7e24ea25