I think the idea is that fuzzy search makes it easier for users to spot typos and this is a general feature of the flag library not something specific for --hel

I think the idea is that fuzzy search makes it easier for users to spot typos and this is a general feature of the flag library not something specific for --help. Short-circuit any typo may be dangerous. Now, an argument can be made for including as many aliases for "help" and "version" as possible but that's a different story