Auto merge of #13112 - bholley:regenpy_fix, r=emilio
Auto merge of #13112 - bholley:regenpy_fix, r=emilio

stylo: Fix incorrect flag syntax in regen.py

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