fix openLink on linux (#6161)
fix openLink on linux (#6161)


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