style: Bump the selector length heuristic.
style: Bump the selector length heuristic.

A selector with combinators has to have length > 2 (a component, a combinator,
another component).

MozReview-Commit-ID: GvMEbRdOVi2
Signed-off-by: Emilio Cobos Álvarez <86fa523305b8ad6a8a853c04cfef24a0445908d3@crisal.io>

jimberlage/servo,ConnorGBrewster/servo,emilio/servo,rnestler/servo,paulrouget/servo,SimonSapin/servo,CJ8664/servo,DominoTree/servo,ConnorGBrewster/servo,CJ8664/servo,upsuper/servo,CJ8664/servo,sadmansk/servo,dati91/servo,eddyb/servo,eddyb/servo,jimberlage/servo,larsbergstrom/servo,pyfisch/servo,thiagopnts/servo,saneyuki/servo,pyfisch/servo,canaltinova/servo,dati91/servo,jimberlage/servo,peterjoel/servo,szeged/servo,notriddle/servo,SimonSapin/servo,SimonSapin/servo,thiagopnts/servo,canaltinova/servo,splav/servo,CJ8664/servo,ConnorGBrewster/servo,pyfisch/servo,KiChjang/servo,pyfisch/servo,splav/servo,anthgur/servo,sadmansk/servo,paulrouget/servo,splav/servo,larsbergstrom/servo,notriddle/servo,szeged/servo,thiagopnts/servo,KiChjang/servo,nnethercote/servo,cbrewster/servo,upsuper/servo,dsandeephegde/servo,saneyuki/servo,splav/servo,paulrouget/servo,mattnenterprise/servo,szeged/servo,dsandeephegde/servo,nnethercote/servo,peterjoel/servo,szeged/servo,fiji-flo/servo,szeged/servo,anthgur/servo,mattnenterprise/servo,nnethercote/servo,nnethercote/servo,dsandeephegde/servo,notriddle/servo,szeged/servo,jimberlage/servo,eddyb/servo,peterjoel/servo,mbrubeck/servo,eddyb/servo,mbrubeck/servo,sadmansk/servo,mattnenterprise/servo,rnestler/servo,SimonSapin/servo,larsbergstrom/servo,dsandeephegde/servo,CJ8664/servo,cbrewster/servo,mbrubeck/servo,anthgur/servo,emilio/servo,peterjoel/servo,dsandeephegde/servo,mbrubeck/servo,saneyuki/servo,notriddle/servo,sadmansk/servo,dati91/servo,pyfisch/servo,DominoTree/servo,KiChjang/servo,emilio/servo,avadacatavra/servo,eddyb/servo,CJ8664/servo,DominoTree/servo,mattnenterprise/servo,KiChjang/servo,dsandeephegde/servo,cbrewster/servo,peterjoel/servo,SimonSapin/servo,rnestler/servo,splav/servo,cbrewster/servo,mattnenterprise/servo,anthgur/servo,upsuper/servo,thiagopnts/servo,paulrouget/servo,mbrubeck/servo,notriddle/servo,saneyuki/servo,fiji-flo/servo,ConnorGBrewster/servo,jimberlage/servo,pyfisch/servo,dati91/servo,avadacatavra/servo,DominoTree/servo,notriddle/servo,notriddle/servo,peterjoel/servo,dati91/servo,KiChjang/servo,SimonSapin/servo,avadacatavra/servo,eddyb/servo,saneyuki/servo,paulrouget/servo,nnethercote/servo,fiji-flo/servo,szeged/servo,cbrewster/servo,upsuper/servo,emilio/servo,emilio/servo,dsandeephegde/servo,peterjoel/servo,szeged/servo,avadacatavra/servo,fiji-flo/servo,upsuper/servo,CJ8664/servo,eddyb/servo,dati91/servo,upsuper/servo,nnethercote/servo,DominoTree/servo,larsbergstrom/servo,ConnorGBrewster/servo,splav/servo,larsbergstrom/servo,notriddle/servo,rnestler/servo,larsbergstrom/servo,saneyuki/servo,paulrouget/servo,CJ8664/servo,eddyb/servo,sadmansk/servo,nnethercote/servo,fiji-flo/servo,cbrewster/servo,avadacatavra/servo,anthgur/servo,paulrouget/servo,peterjoel/servo,pyfisch/servo,DominoTree/servo,thiagopnts/servo,splav/servo,notriddle/servo,canaltinova/servo,larsbergstrom/servo,rnestler/servo,sadmansk/servo,larsbergstrom/servo,anthgur/servo,avadacatavra/servo,emilio/servo,emilio/servo,KiChjang/servo,saneyuki/servo,emilio/servo,cbrewster/servo,canaltinova/servo,thiagopnts/servo,pyfisch/servo,nnethercote/servo,SimonSapin/servo,fiji-flo/servo,saneyuki/servo,rnestler/servo,splav/servo,fiji-flo/servo,splav/servo,jimberlage/servo,splav/servo,KiChjang/servo,saneyuki/servo,KiChjang/servo,szeged/servo,jimberlage/servo,larsbergstrom/servo,sadmansk/servo,canaltinova/servo,upsuper/servo,KiChjang/servo,mbrubeck/servo,pyfisch/servo,canaltinova/servo,peterjoel/servo,mattnenterprise/servo,ConnorGBrewster/servo,thiagopnts/servo,nnethercote/servo,sadmansk/servo,avadacatavra/servo,fiji-flo/servo,dsandeephegde/servo,canaltinova/servo,pyfisch/servo,canaltinova/servo,paulrouget/servo,SimonSapin/servo,larsbergstrom/servo,ConnorGBrewster/servo,mattnenterprise/servo,notriddle/servo,jimberlage/servo,DominoTree/servo,dati91/servo,paulrouget/servo,dati91/servo,KiChjang/servo,mbrubeck/servo,peterjoel/servo,DominoTree/servo,rnestler/servo,cbrewster/servo,anthgur/servo,nnethercote/servo,ConnorGBrewster/servo,upsuper/servo,DominoTree/servo,anthgur/servo,szeged/servo,thiagopnts/servo,mbrubeck/servo,saneyuki/servo,DominoTree/servo,emilio/servo,rnestler/servo,avadacatavra/servo,paulrouget/servo,mattnenterprise/servo,emilio/servo,jimberlage/servo