28acba3c61
Don't panic in `<BorrowedCursor as io::Write>::write` Instead of panicking if the BorrowedCursor does not have enough capacity for the whole buffer, just return a short write, [like `<&mut [u8] as io::Write>::write` does](https://doc.rust-lang.org/src/std/io/impls.rs.html#349). (cc `@ChayimFriedman2` https://github.com/rust-lang/rust/issues/78485#issuecomment-1493129588) (I'm not sure if this needs an ACP? since it's not changing the "API", just what the function does)