remove "look" subcommand

[Songmu]

We can substitute ghq look with the following command.

% ghq get --look motemen/ghq

Also, this "look" function is for temporarily looking at the contents of the repository, and is not suitable for changing the working directory.

This is because the "look" function creates a child process, which needs exit command to exit. This causes non-intuitive behavior.

For switching the working directory, it is recommended to just "cd".

% cd $(ghq list --full-path --exact motemen/ghq)

[snowman]

Put this for interactive search:

alias ghqq='cd $(ghq list -full-path --exact $(ghq list | sed "s:[^/]*/::" | percol))'