Fix filenamemangle

debian/watch

 version=4
 opts=\
 dversionmangle=auto,\
-filenamemangle=s/.*\/v?([\d\.-]+)\.tar\.gz/node-d3-random-$1.tar.gz/ \
+filenamemangle=s/.*?(\d[\d\.-]*@ARCHIVE_EXT@)/node-d3-random-$1/ \
  https://github.com/d3/d3-random/tags .*/archive/v?([\d\.]+).tar.gz