I use trim_trailing_white_space_on_save in my sublime-settings. When editing a file which contains such trailing whiter space, the mini_diff immediately shows a lot of changed lines after the first save. Although correct, other packages like ‘Modific’ allow specifying the options for the git diff command used.
It would be nice if one could specify an option such as --ignore-space-at-eol also for Sublimes mini_diff.