[Issue 16595] thisExePath resolves symlinks but this isn't mentioned in docs

[via Digitalmars-d-bugs]

https://issues.dlang.org/show_bug.cgi?id=16595

--- Comment #3 from Jacob Carlborg <doob at me.com> ---
(In reply to Timothee Cour from comment #2)
> at very least it should be documented; but IMO thisExePath has no business
> resolving symlinks; 

If I recall correctly, there was no suitable function in Phobos, at the time of
the implementation, that cleaned up the path so I resorted to "realpath". As a
side effect it also resolves symbolic links. Actually, I don't remember if my
intention was to resolve symbolic links or not.

> and the function that does realpath/readlink should be
> exposed as a separate function (cross platform), so user could call
> realPath(thisExePath) if he wants to.

What about platform consistency? Should the function always return
"/proc/self/exe" on Linux forcing the user to always call "readlink". Or should
they have different behavior?

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