discovardenovo: Fix brew audit again
discovardenovo: Fix brew audit again

The URL http://www.broadinstitute.org/software/discovar/blog/
could use HTTPS rather than HTTP.

philippbayer/homebrew-science,pditommaso/homebrew-science,heuermh/homebrew-science,andrewjpage/homebrew-science,quantumsteve/homebrew-science,dpo/homebrew-science