Alignment for match expressions

[gsingh93]

The alignment section says not to use extra whitespace to align things, and it gives examples with struct declarations and let bindings. However, it doesn't give any examples with match expressions. Match expressions are the one thing I do align with whitespace (I've taken this habit from Haskell, where I've seen it done a lot), so I'd like clarification in the style guide about whether we should or shouldn't be aligning each case of a match expression.

[glennpratt]

👍

The arrows are aligned in the documentation here:

http://doc.rust-lang.org/reference.html#match-expressions