Sorry again, I reverted expn.yo in a wrong way. (suggestion by Daniel Shahaf was not included) Now I reverted it to commit 6269db883ad6989a578bac299deab9c4285bb1df Author: Peter Stephenson <p.w.stephenson@xxxxxxxxxxxx> Date: Sun May 10 19:19:34 2015 +0100 and applied my tiny patch.