version=4
opts="repack, repacksuffix=+dfsg, compression=xz, dversionmangle=auto, \
 uversionmangle=s/rc/~rc/g,filenamemangle=s/.*\/(.*)/ants-$1/" \
  https://github.com/ANTsX/ANTs/tags (?:.*?/)?v?([\d\.a-z]+)\.tar\.gz
