message: Lowered error log lvl to warn, re: misbehavior missing headers
diff: @@ -802,7 +802,8 @@ impl ForeignClient {
  break;
  }
  - //
  + // No header in events, cannot run misbehavior.
  + // May happen on chains running older SDKs (e.g., Akash)
  if update_event.header.is_none() {
  return Err(ForeignClientError::MisbehaviourExit(
  "no header in update client events".to_string(),
  @@ -917,7 +918,7 @@ impl ForeignClient {
  // warn the user and continue.
  match result {
  Err(ForeignClientError::MisbehaviourExit(s)) => {
  - error!(
  + warn!(
  "[{}] misbehaviour checking is being disabled: {:?}",
  self, s
  );
  