fixes missing rust syntax highlighting in example

[cburgdorf]

No description provided.

[alexcrichton]

The default for syntax highlighting is to be rust (if not annotated), and this appears to be annotated in the rendered version, did this fix something for you?

[cburgdorf]

Yes, it fixes the missing syntax highlighting.

Compare this:

with this:

But wait a second before merging. There is at least one more. I'll force push the branch in a moment.

[steveklabnik]

I think this might be a GitHub vs. Rustdoc thing.

I do like explicitly annotating all of them, even if they don't need it, because of it.

[lilyball]

It's definitely a GitHub vs Rustdoc thing. GitHub doesn't automatically assume rust as the language. Rustdoc does.

[cburgdorf]

Actually there is quite some mix of _, _rust, {rust}_, _{rust, ignore}, and several others. I'm not exactly sure when to use which but at least this patch brings missing syntax highlighting on github for a couple of code examples.

[lilyball]

I don't see why we should care about the highlighting of the markdown files on GitHub. That's not how they're intended to be viewed.

[steveklabnik]

Nothing is equivalent to rust, but I like including the parens if you're going to bother to put it in.

[steveklabnik]

Why is this one now ignore?

[cburgdorf]

At the time that I added it, I didn't actually know what the purpose of ignore is and just noticed that it is sometimes {rust,ignore} instead of just rust. Now I know that this means it will be ignored for the tests. Should I change that back to just {rust}?

[steveklabnik]

Yes please!

[cburgdorf]

updated and rebased on latest master

[steveklabnik]

r+=me after the ignore question is resolved.