${PHANTOMJS} ${PROG} "${PHANTOMJS_URL}" ${IMAGES}/tmp.$$file.png ${SCREENSHOT_WIDTH_HEIGHT} ${TIMEOUT}; \
mv -f ${IMAGES}/tmp.$$file.png ${IMAGES}/$$file.png
-screenshots: clean estimate-time iframe
+screenshots: clean estimate-time iframe tidy
set -e; \
for t in ${TESTS}; do \
for i in $$(cat url.$$t); do \