revert commit
Merge branch 'gfm-output' of https://github.com/github/brakeman into gfm-output
Revert "Merge branch 'gfm-output' of https://github.com/github/brakeman into gfm-output"

This reverts commit 7f60aec671abe706f6f1240009b512e48856de86, reversing
changes made to a8f3151f51d07a22345968c28b713bca4101e6ea.