Fix negentropy error

packages/net/src/diff.ts

@@ -149,7 +149,7 @@ export const diff = async ({relays, filters, ...options}: DiffOptions) => {
                 })
 
                 diff.on(DifferenceEvent.Error, (message, url) => {
-                  console.warn(`Negentropy error on ${url}: ${message}`)
+                  // Pass, to suppress event emitter's default error propagation
                 })
 
                 sleep(30_000).then(() => {

packages/net/src/message.ts

@@ -7,8 +7,8 @@ export enum RelayMessageType {
   Closed = "CLOSED",
   Eose = "EOSE",
   Event = "EVENT",
-  NegErr = "NEG-ERR",
   NegMsg = "NEG-MSG",
+  NegErr = "NEG-ERROR",
   Ok = "OK",
 }