Merge remote-tracking branch 'josh/ticket/2.7.x/9636-onlyif-unless-windows-exec' into 2.7.x
- josh/ticket/2.7.x/9636-onlyif-unless-windows-exec: Maint: Remove duplicate path extension code (#9636) Always set $CHILD_STATUS when executing on Windows (#9636) Fix PATHEXT resolution for paths other than system32