I have rewritten the help output for what I consider is a more readable presentation. Please feel free to accept it as-is or use as inspiration for future work.
Indentation and grouping headers are used to reduce verbosity.
Modules are presented in the same order in both "Available modules" section and "Options for specific modules" section, for beter readability.
Also some light rewriting and changes in capitalization in descriptions, for sake of understandability and readability.
I have rewritten the help output for what I consider is a more readable presentation. Please feel free to accept it as-is or use as inspiration for future work.