chardet/chardet — pull request #44 by rsnair2 (2014-12-05 03:30:50+00:00)
Title: Modified filter_english_with_letters to mimic the behavior form Mozilla's version. 

This change helps pass three unit tests that were failing before. I have also tested the changes by comparing the output of this function with Mozilla's version over some large randomly generated byte strings and so far so good.