[PATCH v5 0/3] MR6891: cmd: Use CD /D to change directory in POPD (same as PUSHD).

[huangqinjin (＠huangqinjin)]

Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=57137

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  v5: cmd: Set =C: environment variable if POPD succeeds (same as PUSHD).
      cmd: Refactor CD command.
      cmd/tests: Add tests for POPD with directory that no longer exists.
 
https://gitlab.winehq.org/wine/wine/-/merge_requests/6891