Rendering newline in error doesn't help user #259
Description
This is a regression compared to toml-rs as found by cargo's test suites
---- bad_config::malformed_override stdout ----
running `/home/epage/src/personal/cargo/target/debug/cargo build`
thread 'bad_config::malformed_override' panicked at '
test failed running `/home/epage/src/personal/cargo/target/debug/cargo build`
error: stderr did not match:
1 1 error: failed to parse manifest at `[..]`
2 2
3 3 Caused by:
4 4 could not parse input as TOML
5 5
6 6 Caused by:
7 - expected a table key, found a newline at line 8 column 27
7 + TOML parse error at line 8, column 27
8 + |
9 + 8 | native = {
10 + | ^
11 + Unexpected `
12 + `