bbatsov/emacs-prelude — comment on commit fde883cbc0dffab308aa47164e54e3d59bc215d9
File:  line 0
By pparescasellas:

example_el loads at startup (without renaming it to .el). I didn't know what was going on until I noticed (whitespace was not starting in prog-mode and spaces were replaced by tabs on save). I removed the file and everything's fine again.