The "test-all-help" command:
Usage: fossil test-all-help ?OPTIONS? Show help text for commands and pages. Useful for proof-reading. Defaults to just the CLI commands. Specify --www to see only the web pages, or --everything to see both commands and pages. Options: -e|--everything Show all commands and pages. -t|--test Include test- commands -w|--www Show WWW pages. -s|--settings Show settings. -h|--html Transform output to HTML.