chore - write error message so that it doesn't get confused as file path

src/vs/base/common/event.ts

@@ -1066,7 +1066,7 @@ export class Emitter<T> {
 	get event(): Event<T> {
 		this._event ??= (callback: (e: T) => any, thisArgs?: any, disposables?: IDisposable[] | DisposableStore) => {
 			if (this._leakageMon && this._size > this._leakageMon.threshold * 3) {
-				const message = `[${this._leakageMon.name}] REFUSES to accept new listeners because it exceeded its threshold by far (${this._size}/${this._leakageMon.threshold})`;
+				const message = `[${this._leakageMon.name}] REFUSES to accept new listeners because it exceeded its threshold by far (${this._size} vs ${this._leakageMon.threshold})`;
 				console.warn(message);
 
 				const tuple = this._leakageMon.getMostFrequentStack() ?? ['UNKNOWN stack', -1];