hg: jdk/sandbox: * Fix local drive detection in WSL.

[magnus.ihse.bursie at oracle.com]

Changeset: 87000540f54c
Author:    ihse
Date:      2020-05-13 14:58 +0200
URL:       https://hg.openjdk.java.net/jdk/sandbox/rev/87000540f54c

* Fix local drive detection in WSL.
* Fix cmd.exe detection.
* Fix *.exe executable naming issues.
* Fix jib cross-compilation naming for WSL.

! make/autoconf/basic.m4
! make/autoconf/basic_tools.m4
! make/autoconf/util.m4
! make/conf/jib-profiles.js