Merge branch 'nd/gitignore-trailing-whitespace'

Trailing whitespaces in .gitignore files, unless they are quoted for fnmatch(3), e.g. "path\ ", are warned and ignored. Strictly speaking, this is a backward incompatible change, but very unlikely to bite any sane user and adjusting should be obvious and easy. * nd/gitignore-trailing-whitespace: t0008: skip trailing space test on Windows dir: ignore trailing spaces in exclude patterns dir: warn about trailing spaces in exclude patterns