Fix summary showing warnings above threshold
Fix summary showing warnings above threshold

which looked strange when no warnings were reported but the summary said
there were.

codeclimate/brakeman-deprecated,jakeatwork/brakeman,bf4/brakeman,spcoder/brakeman,liqites/brakeman,github/brakeman,spcoder/brakeman,htdc/brakeman,jlecour/brakeman,liqites/brakeman,cheerfulstoic/brakeman,jakeatwork/brakeman,lee-leon/brakeman,dfens/brakeman,masarakki/brakeman,kbrock/brakeman,lee-leon/brakeman,PragTob/brakeman,github/brakeman,htdc/brakeman,cheerfulstoic/brakeman,PragTob/brakeman,kbrock/brakeman,jeffyip/brakeman,jakeatwork/brakeman,jeffyip/brakeman,dfens/brakeman,htdc/brakeman,masarakki/brakeman,codeclimate/brakeman-deprecated,masarakki/brakeman,jlecour/brakeman,spcoder/brakeman,dfens/brakeman,bf4/brakeman,cheerfulstoic/brakeman,liqites/brakeman,jlecour/brakeman,oreoshake/brakeman,kbrock/brakeman,bf4/brakeman,oreoshake/brakeman,lee-leon/brakeman