-f docbook -m $^ > $@.new && mv $@.new $@
stats: update-stats progress.png
-update-stats: freeculture.nb.po
+update-stats: freeculture.nb.po lint.nb
( \
printf "%s " $$(date +"%Y-%m-%dT%H%M") ; \
msgfmt -o /dev/null --statistics freeculture.nb.po 2>&1 \