cli: ipfs2 config --show is not functional. switch to ipfs config show?

[btc]

#263 changes ipfs2 config --show to ipfs2 config show.

Previously, --show was used to avoid collisions with a key named show. Recall: ipfs config <key> is used to lookup keys.

Three potential ways to proceed:

1. Allow ipfs2 config show with the awareness that we introduce potential for collision. While, in most cases, this will not be a problem, it is a poor compromise.

2. Allow ipfs2 config show and change ipfs2 config <key> to ipfs2 config get <key>. This avoids the collision, requires sign-off.

3. Adapt the commands framework to handle this use-case as desired. (edit: by making them options on the super command)

edit: We decided to do away with the config subcommands make --show and --edit options in the super command.

[btc]

@jbenet @mappum have we come to agreement on how to address this command?

edit: I see on the spreadsheet that jbenet is covering it.

https://docs.google.com/a/perfmode.com/spreadsheets/d/1XgSDZGTSIrgdO48lLzUKLYTzZHk-ggW9RMJm2U-nrLs/edit#gid=0