Fix missing comma in gRPC status code labels
Fixes the issue caught by in
@@ -605,7 +605,7 @@ impl fmt::Display for ResponseLabels {
self.status_code
)?;
if let Some(ref status) = self.grpc_status_code {
- write!(f, "grpc_status_code=\"{}\"", status)?;
+ write!(f, ",grpc_status_code=\"{}\"", status)?;
}
Ok(())
