Auto merge of #42541 - gilescope:patch-1, r=alexcrichton

assert_eq failure message easier to read

By having the left and right strings aligned with one another it helps spot the difference between the two far quicker than if they are on the same line.

E.g.
Before:

```
thread 'tests::test_safe_filename' panicked at 'assertion failed: `(left == right)` left:  `"-aandb--S123.html"` right: `"-aandb-S123.html"`',
```

After:

```
thread 'tests::test_safe_filename' panicked at 'assertion failed: `(left == right)`
left:  `"-aandb--S123.html"`
right: `"-aandb-S123.html"`',
```

When the strings are both on the same line it take a lot longer to spot the difference. It is a small change but the small time savings add up with repetition. This would help Rust be an excellent language to write tests in out of the box.

Closes https://github.com/rust-lang/rust/issues/41615

0 files changed, 0 insertions, 0 deletions