nflath/save-visited-files — pull request #3 by jpkotta (2013-12-02 23:24:18+00:00)
Title: use mapcar instead of mapc where there are no side effects

Stopped working for me after a recent update (I'm on Emacs 24.3.1, but I'm not entirely sure when it stopped working). Here's the fix. This also fixes a compile warning.