Matthias Krüger d878ad0559
Rollup merge of #92863 - camelid:read_to_string-rm-mut, r=m-ou-se
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.

r? `@m-ou-se`

[1]: https://github.com/rust-lang/rust/issues/80218#issuecomment-874322129
2022-01-15 11:28:24 +01:00
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2021-12-18 00:21:53 +11:00