util: Simplify splitFile* util functions * Use a single match call instead of two gsubs
util: Simplify splitFile* util functions
* Use a single match call instead of two gsubs

koreader/koreader,Frenzie/koreader,koreader/koreader,NiLuJe/koreader,poire-z/koreader,NiLuJe/koreader,Frenzie/koreader,Markismus/koreader,Hzj-jie/koreader,poire-z/koreader,mwoz123/koreader,pazos/koreader