version=3
opts=uversionmangle=s/(\d)[_\.\-\+]?((RC|rc|pre|dev|beta|alpha)\d*)$/$1~$2/;s/RC/rc/,\
dversionmangle=s/\+(debian|dfsg|ds|deb)\d*$// \
http://grass.osgeo.org/grass70/source/ \
grass-([\d\.]*(?:(?:RC|rc|pre|dev|beta|alpha)?\d*)).tar.gz
