GNU bug report logs - #36594
No hint for missing argument

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Message #5 received at submit <at> debbugs.gnu.org (full text, mbox):

From: Julien Lepiller <julien <at> lepiller.eu>
To: bug-guix <at> gnu.org
Subject: No hint for missing argument
Date: Thu, 11 Jul 2019 11:49:45 +0200

When you type an option that requires an argument, but don't provide one, you get an error message that says there is a missing argument. There should brobably be a hint on what values are acceptable. For instance, there is no way to know from "guix package -v" or "guix package --help" what values are accepted. In other cases, there is a --list-something option.

Maybe -v is the only case where it would be useful to do something, because you could guess its existence and not use a verbosity level. Maybe fixing the help message to say --verbosity=[0-5] is enough?

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