Display error message if mistype macro_use

[QuantumBear]

I typed #[marco_use] instead of correct #[macro_use] in file, but the compiler report can not find macro xxx in this scope.

extern crate iron;
#[marco_use] extern crate mime;

and the error message is

error: cannot find macro `mime!` in this scope
  --> src/main.rs:15:22
   |
15 |     response.set_mut(mime!(Text/Html; Charset=Utf8));
   |                      ^^^^

I think compiler should directly report marco_use is incorrect and should be macro_use.

##Meta

rustc 1.22.1 (05e2e1c 2017-11-22)
binary: rustc
commit-hash: 05e2e1c
commit-date: 2017-11-22
host: x86_64-unknown-linux-gnu
release: 1.22.1
LLVM version: 4.0