* modules/update-copyright-tests (Makefile.am): In TESTS_ENVIRONMENT, set abs_aux_dir instead of augmenting PATH. * modules/vc-list-files-tests (Makefile.am): Likewise. * tests/test-update-copyright.sh: Augment PATH here. * tests/test-vc-list-files-cvs.sh: Augment PATH here, through path_prepend_. * tests/test-vc-list-files-git.sh: Likewise.
* build-aux/update-copyright: Fix bug. Use UPDATE_COPYRIGHT_YEAR from environment as current year if specified. * modules/update-copyright-tests: New * tests/test-update-copyright.sh: New.