Refine transaction log count message (#13378)

(cherry picked from commit b5ef319038)

Co-authored-by: Michael Vines <mvines@gmail.com>

client/src/rpc_request.rs

@@ -153,8 +153,12 @@ impl fmt::Display for RpcResponseErrorData {
                     logs: Some(logs), ..
                 },
             ) => {
-                // Give the user a hint that there is more useful logging information available...
-                write!(f, "{} log messages", logs.len())
+                if logs.is_empty() {
+                    Ok(())
+                } else {
+                    // Give the user a hint that there is more useful logging information available...
+                    write!(f, "[{} log messages]", logs.len())
+                }
             }
             _ => Ok(()),
         }
@@ -165,7 +169,7 @@ impl fmt::Display for RpcResponseErrorData {
 pub enum RpcError {
     #[error("RPC request error: {0}")]
     RpcRequestError(String),
-    #[error("RPC response error {code}: {message} [{data}]")]
+    #[error("RPC response error {code}: {message} {data}")]
     RpcResponseError {
         code: i64,
         message: String,