use "./gzip" for gzip tests
diff --git a/tests/gzip/keep.sh b/tests/gzip/keep.sh
index 105d43e..ab9a218 100644
--- a/tests/gzip/keep.sh
+++ b/tests/gzip/keep.sh
@@ -17,7 +17,7 @@
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 # limit so don't run it by default.
 
-. "${srcdir=.}/init.sh"; path_prepend_ ..
+. "${srcdir=.}/init.sh"; path_prepend_ .
 
 echo fooooooooo > in || framework_failure_
 cp in orig || framework_failure_