[Nix-dev] [nixpkgs] drush: add expression (#1328)

[Michael Raskin]

>Excerpts from Michael Raskin's message of 2013-12-05 04:54:51 +0000:
>> I wonder if this is the first package I have seen with meta right
>> after the name in the beginning of the expression
>
>Might be the first. I think it's better this way, as when you're
>glancing at an expression, this is information you will want to know.
>However, I generally like to stick with convention.

I agree with that but I already have a habit to scroll down…

So I wonder whether it is a good idea to establish a new global
convention (and gradually migrate to it): meta should be as high as 
resonable in the expression file? (Cc-ing nix-dev)

Benefit: new users see some human-readable description immediately after
opening an arbitrary package file (in the long term, experienced users
have to scroll less to see the description and maintainers…).

Long-term drawbacks: I see none, what do I miss.

Short-term drawbacks: most packages now put meta in the end.