commit https://github.com/vim/vim/commit/acf92d27c94811e3bd6b84cfd54246e91d44c355 Author: Bram Moolenaar <Bram@vim.org> Date: Sat Jan 2 16:00:20 2016 +0100 patch 7.4.1026 Problem: When using MingW the tests do not clean up all files. E.g. test 17 leaves Xdir1 behind. (Michael Soyka) Solution: Also delete directories, like Make_dos.mak. Delete files after directories to reduce warnings.