Function head_to_string_with_message

pub fn head_to_string_with_message(
    path: impl AsRef<Path>,
    limit: usize,
    truncation_message: &str,
) -> Result<String>

Reads the first N bytes from a file and return them as a string. If the file size is greater than N bytes, the truncation message will be put at the end of the String.

It assumes that the file is encoded with UTF-8, so any invalid UTF-8 sequences will be replaced with U+FFFD REPLACEMENT CHARACTER, which looks like this: �, learn more here).