Update default return for on_pause doc
Update default return for on_pause doc

[ci skip]

rnixx/kivy,akshayaurora/kivy,inclement/kivy,bionoid/kivy,kived/kivy,KeyWeeUsr/kivy,jkankiewicz/kivy,LogicalDash/kivy,LogicalDash/kivy,rafalo1333/kivy,janssen/kivy,rafalo1333/kivy,Cheaterman/kivy,manthansharma/kivy,jkankiewicz/kivy,rnixx/kivy,matham/kivy,Cheaterman/kivy,autosportlabs/kivy,jkankiewicz/kivy,autosportlabs/kivy,LogicalDash/kivy,jegger/kivy,rnixx/kivy,tony/kivy,Cheaterman/kivy,kivy/kivy,bionoid/kivy,jegger/kivy,autosportlabs/kivy,kivy/kivy,bionoid/kivy,jegger/kivy,KeyWeeUsr/kivy,LogicalDash/kivy,inclement/kivy,inclement/kivy,rafalo1333/kivy,kivy/kivy,KeyWeeUsr/kivy,matham/kivy,akshayaurora/kivy,akshayaurora/kivy,matham/kivy,jkankiewicz/kivy,tony/kivy,kived/kivy,manthansharma/kivy,bionoid/kivy,manthansharma/kivy,KeyWeeUsr/kivy,kived/kivy,janssen/kivy,janssen/kivy,tony/kivy,jegger/kivy,janssen/kivy,manthansharma/kivy,matham/kivy,Cheaterman/kivy