[lokisetup] symlink paths

[Ryan C. Gordon]

> PhysicsFS was a big help in the creation of my own get_absolute_path()
> function, but I must've given it too quickly a glance to have not even
> seen cases where the program was launched from a symlink. Thanks Ryan,
> and thanks Clement.

Oh, it does it elsewhere: __PHYSFS_platformRealPath(), which gets called
after it does the binary path locating...on Linux, this boils down to a
call to realpath().

--ryan.