hg: jdk/sandbox: Rename CYGPATH to PATHTOOL.

[magnus.ihse.bursie at oracle.com]

Changeset: fa4270639e37
Author:    ihse
Date:      2020-07-02 18:16 +0200
URL:       https://hg.openjdk.java.net/jdk/sandbox/rev/fa4270639e37

Rename CYGPATH to PATHTOOL.

! make/RunTestsPrebuiltSpec.gmk
! make/autoconf/basic_tools.m4
! make/autoconf/basic_windows.m4
! make/autoconf/spec.gmk.in
! make/ide/idea/jdk/idea.gmk
! make/ide/visualstudio/hotspot/CreateVSProject.gmk