Document global options

[RichardLitt]

timeout is a global option that can be passed to the CLI and to the HTTP API. It is referenced in a few places, like in ipfs diag net --help, but it isn't clear there that it is global, and it may seem that it is only relevant for those subcommands (like diag net). There should be a mention of global options, somewhere in the CLI man (and in the HTTP API docs, but we can get to that later).

The obvious place would be at the bottom of ipfs --help. What do you think?

[whyrusleeping]

I think that global options should probably be printed for every commands --help output. Since they affect every command.

[RichardLitt]

This should also apply for proto. CF https://github.com/ipfs/http-api-spec/pull/52/files#r55575516.

Also, I think 'encoding'?

[atomgardner]

@whyrusleeping

I think that global options should probably be printed for every commands --help output. Since they affect every command.

But aren't they "supposed" to be specified before the subcommands? e.g.: ipfs -L name resolve Qmfoo or ipfs -C /foo/bar add -w baz.

[atomgardner]

@Stebalien, what's the diff for your edit? obviously I have no recollection of writing the response.

[Stebalien]

Adding a newline between the quote and your comment, IIRC.