Noah Lev aa0ce4a20e Remove &mut from io::read_to_string signature
`@m-ou-se` [realized][1] that because `Read` is implemented for `&mut impl
Read`, there's no need to take `&mut` in `io::read_to_string`.

Removing the `&mut` from the signature allows users to remove the `&mut`
from their calls (and thus pass an owned reader) if they don't use the
reader later.

[1]: https://github.com/rust-lang/rust/issues/80218#issuecomment-874322129
2022-01-13 10:57:45 -08:00
..
2021-12-18 00:21:53 +11:00