Fix broken URL for IETF user-agent draft
@@ -358,7 +358,7 @@ impl MessageBuilder {
}
/// Set [User-Agent
- /// header](https://tools.ietf.org/html/draft-melnikov-email-user-agent-004)
+ /// header](https://tools.ietf.org/html/draft-melnikov-email-user-agent-00)
pub fn user_agent(self, id: String) -> Self {
self.header(header::UserAgent::from(id))
}
