Merge branch 'en/fill-directory-fixes-more'

Corner case bugs in "git clean" that stems from a (necessarily for performance reasons) awkward calling convention in the directory enumeration API has been corrected. * en/fill-directory-fixes-more: dir: point treat_leading_path() warning to the right place dir: restructure in a way to avoid passing around a struct dirent dir: treat_leading_path() and read_directory_recursive(), round 2 clean: demonstrate a bug with pathspecs