events: update and clarify error message

Update error message that's thrown when no error listeners are attached
to an emitter.

PR-URL: https://github.com/nodejs/node/pull/10387
Reviewed-By: Sam Roberts <vieuxtech@gmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: Italo A. Casas <me@italoacasas.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Michaël Zasso <targos@protonmail.com>

1 files changed, 2 insertions, 2 deletions

diff --git a/lib/events.js b/lib/events.js
index dfd0ed57d4..eabf5c2cc7 100644
--- a/lib/events.js
+++ b/lib/events.js
@@ -171,7 +171,7 @@ EventEmitter.prototype.emit = function emit(type) {
       er = arguments[1];
     if (domain) {
       if (!er)
-        er = new Error('Uncaught, unspecified "error" event');
+        er = new Error('Unhandled "error" event');
       if (typeof er === 'object' && er !== null) {
         er.domainEmitter = this;
         er.domain = domain;
@@ -182,7 +182,7 @@ EventEmitter.prototype.emit = function emit(type) {
       throw er; // Unhandled 'error' event
     } else {
       // At least give some kind of context to the user
-      var err = new Error('Uncaught, unspecified "error" event. (' + er + ')');
+      const err = new Error('Unhandled "error" event. (' + er + ')');
       err.context = er;
       throw err;
     }