Possible landing bot issues

[Ian Booth]

> 
> I think there are two problems with the current landing bot.
>

Thanks for raising the issues.


> 1. the bot doesn't appear to NACK changes that are not gofmt'd, this
> means changes land which others cannot fix because their .gitconfig
> prevents them.
> 

Still on the todo list, sorry. Will be fixed asap.

> 2. the bot doesn't appear to be enforcing it's lockdown rules as the
> comment it places on the PR contains the magic string that the bot
> looks for when it see's another $$ instruction.
> 

Curtis has already fixed this plus landed some other imporvements (see other
emails).