rust/compiler
Yuki Okushi 56ddef8ab8
Rollup merge of #86680 - camsteffen:dbg-opt-error, r=petrochenkov
Improve error for missing -Z with debugging option

Before:
```text
❯ rustc --unpretty=hir
error: Unrecognized option: 'unpretty'
```
After:
```text
❯ rustc --unpretty=hir
error: Unrecognized option: 'unpretty'. Did you mean `-Z unpretty`?
```
2021-07-01 05:20:57 +09:00
..