Both the main parser and the util-linux mount-helper-mode parser (invoked as mount.mstack) are converted with "systmed-mstack" and "mount.mstack" as namespaces. The latter has no help. For systemd-mstack, Commands are listed first, and then Options. And --no-pager, --no-legend, --json= are moved to the end. Co-developed-by: Claude Opus 4.7 <noreply@anthropic.com>