Paths: (GetExecPaths) do not hardcode unix path separator char, use a const
Paths: (GetExecPaths) do not hardcode unix path separator char, use a const

In a similar way we do it in Banshee.IO.Directory:
http://git.gnome.org/browse/banshee/tree/src/Core/Banshee.Core/Banshee.IO/Directory.cs#n38

GNOME/hyena,arfbtwn/hyena,GNOME/hyena,arfbtwn/hyena