message: fix fmt again
diff: @@ -482,7 +482,9 @@ mod tests {
  tmp.insert(*key, Transform::AddInt32(2i32));
  }
  CLType::String => {}
  - _ => unreachable!("remember to update the test pairs if new cl_types are added"),
  + _ => unreachable!(
  + "remember to update the test pairs if new cl_types are added"
  + ),
  }
  }
  }
  