Error Reporter

This crate contains a copy of the std::error::Report type which is currently unstable. The copy is identical except that backtraces are not supported since they rely on other unstable features.

lib.rs:

A type for printing single-line or multi-line error message.

The code in this crate is copied from std::error::Report which is unstable. Unlike the code in std, this code does not support printing backtrace because doing so relies on other unstable features. Otherwise this code is identical to the code in std as of 2023-03-14.