jjj 0.4.1

Distributed project management and code review for Jujutsu
Documentation 
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/// Truncate a string to a maximum length, appending "..." if truncated.
pub(crate) fn truncate(s: &str, max_len: usize) -> String {
    if s.chars().count() <= max_len {
        s.to_string()
    } else {
        let truncated: String = s.chars().take(max_len.saturating_sub(3)).collect();
        format!("{}...", truncated)
    }
}