Log Message:
Update to 1.993

Upstream changes:
1.993 2022-12-31T20:33:55Z
        * Try harder to check for symlinks on Windows by stealing some code
        from Win32:: (Jean-Damien Durand) GitHub #36

1.992_01 2022-11-10T21:59:59Z
        * Try harder to test Windows symlinks, #36 from Jean-Damien Durand