debian/watch

   1 version=3
   2 opts=downloadurlmangle=s|/download||,filenamemangle=s|http://sourceforge.net/projects/samtools/files/samtools/.+?/||;s|.download|| \
   3   http://sourceforge.net/projects/samtools/files/samtools/ \
   4   http://sourceforge.net/projects/samtools/files/samtools/.+?/samtools-(.*).tar.bz2/download