elpa-ws-butler - 0.6-5 main

This package provides ws-butler-mode and ws-butler-global-mode. Upon
saving a file in Emacs, these modes delete trailing whitespace on
lines of the buffer that have been edited.
.
As compared with simply calling delete-trailing-whitespace in your
before-save-hook, ws-butler has the advantage of not cluttering up
version control commits with whitespace cleanup outside of the part
of the file you have edited.