Merge branch 'js/import-tars-do-not-make-phony-files-from-pax-headers'

The import-tars importer (in contrib/fast-import/) used to create phony files at the top-level of the repository when the archive contains global PAX headers, which made its own logic to detect and omit the common leading directory ineffective, which has been corrected. * js/import-tars-do-not-make-phony-files-from-pax-headers: import-tars: ignore the global PAX header