message: Minor comment fix for BlockRetrievalResponse.
  Closes
diff: @@ -37,7 +37,7 @@ use std::{
  use tokio::runtime::TaskExecutor;
  use types::{transaction::TransactionListWithProof, validator_verifier::ValidatorVerifier};
  -/// The response sent back from event_processor for the BlockRetrievalRequest.
  +/// The response sent back from EventProcessor for the BlockRetrievalRequest.
  #[derive(Debug)]
  pub struct BlockRetrievalResponse<T> {
  pub status: BlockRetrievalStatus,
  