Formatting of chars with fixed width was broken?

Current code gives different results on stable and nightly branches

``` rust
fn main() {
    println!("{: >5} | {: >5}", 112, 0);
    println!("{: >5} | {: >5}", '.', 0);
}
```

Here is the stable:

```
  112 |     0
    . |     0
```

And here is the nightly:

```
  112 |     0
. |     0
```
