D-Programming-Language/dmd — pull request #2787 by yebblies (2013-11-17 03:55:25+00:00)
Title: Fix Issue 9644 - Spell checker gives silly suggestions for 1-2 character symbols

I've implemented the difference limit as `min(strlen(id) - 1, 2)`

https://d.puremagic.com/issues/show_bug.cgi?id=9644