message: Make unit and integration error handling closer
diff: @@ -88,9 +88,9 @@ fn init_and_query() {
  // bad query returns parse error
  let qres = query(&mut deps, b"no json here".to_vec());
  - assert!(qres.is_err());
  - if let QueryResult::Err(msg) = qres {
  - assert!(msg.starts_with("Error parsing QueryMsg:"), msg);
  + match qres {
  + QueryResult::Err(msg) => assert!(msg.starts_with("Error parsing QueryMsg:"), msg),
  + _ => panic!("Call should fail"),
  }
  }
  