For some reason, the diff for distutils/_backport/misc.py makes it seem
like it?s a new file instead of showing the changes I did during the
merge.

This moves individual backported functions from compat into a new
_backport.misc module.  compat regains its original purpose of
containing 2to3 support code (i.e. compat for projects using distutils2,
not internal compat for d2 code) and all backports now live under the
private _backport subnamespace.

Also fix the definition of ?any? to bind it to the builtin in 2.5+
(fsencode and detect_encoding not changed, they never exist in
2.x).