Hello,

I wrote a script that parses curl --help output and generates a zsh completion
file. Once curl is built one can run "./zsh.pl src/curl > _curl" and then move
the _curl file under "/usr/share/zsh/site-completions/" and restart a shell.

Then "curl TAB", "curl -TAB", "curl --TAB", ... should provide help text and
information on the available options.

The first attached patch fixes the format of the --help output, the other adds
the script. It is not run as part of the build process right now, but I think
it'd be nice to add a configure option to build and install the completion file.

Cheers

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