Simplify logic for writing to stderr.
Simplify logic for writing to stderr.

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