tests: use perl, not find+rm, to remove temporary directories The File::Path::rmtree function from perl, if used right, is more reliable and more portable of our past idiom: find $dirs -type d ! -perm -700 -exec chmod u+rwx {} ';'; rm -rf $$dirs || exit 1 at least of the face of unreadable dirs/files and other similar permission issues (and we have those in our test directories). In fact, this change fixes some spurious failures seen in "make distcheck" on Solaris 10. * t/ax/deltree.pl: New. * Makefile.am (EXTRA_DIST): Add it. (clean-local-check): Use it. * t/ax/test-lib.sh (rm_rf_): Use it. Signed-off-by: Stefano Lattarini <stefano.lattarini@gmail.com>