[PathList] Check that root exists before reading the file system.
[PathList] Check that root exists before reading the file system.

Ashton-W/CocoaPods,vivekshukla-mob-ibtech/Repository,segiddins/CocoaPods,orta/CocoaPods,ashfurrow/CocoaPods,mglidden/CocoaPods,mglidden/CocoaPods,mglidden/CocoaPods