Merge branch 'jc/directory-attrs-regression-fix'

Fix 1.8.1.x regression that stopped matching "dir" (without trailing slash) to a directory "dir". * jc/directory-attrs-regression-fix: t: check that a pattern without trailing slash matches a directory dir.c::match_pathname(): pay attention to the length of string parameters dir.c::match_pathname(): adjust patternlen when shifting pattern dir.c::match_basename(): pay attention to the length of string parameters attr.c::path_matches(): special case paths that end with a slash attr.c::path_matches(): the basename is part of the pathname