Fix incorrect closing of last drawing contour
Fix incorrect closing of last drawing contour

pigoz/libass-ct,sanyaade-g2g-repos/libass,astiob/libass,stps/libass,mwgoldsmith/libass,grigorig/libass,MrSmile/libass,sanyaade-g2g-repos/libass,torque/libass,ShiftMediaProject/libass,astiob/libass,mwgoldsmith/libass,pigoz/libass-ct,libass/libass,xbmc/libass,torque/libass,Akemi/libass,pigoz/libass-ct,ShiftMediaProject/libass,xbmc/libass,mwgoldsmith/libass,libass/libass,stps/libass,grigorig/libass,stps/libass,torque/libass,Akemi/libass,MrSmile/libass,Akemi/libass,sanyaade-g2g-repos/libass