tpope/vim-sleuth — pull request #17 by BrandonOCasey (2014-09-09 19:59:05+00:00)
Title: Added a configuration option for the default tabstop width, so it can be changed from 8

I was not happy that the default was 8, so rather than just changing the default I kept the default at 8 and made it configurable, giving the user the power. I also added to the README for this change.