Style tweaks: add a few ruby specific tweaks (#8189)
Style tweaks: add a few ruby specific tweaks (#8189)


poire-z/koreader,poire-z/koreader,NiLuJe/koreader,Frenzie/koreader,koreader/koreader,koreader/koreader,NiLuJe/koreader,Frenzie/koreader