Update error message

Author: antoinegomez

package.json

@@ -1,6 +1,6 @@
 {
   "name": "@hapiness/rabbitmq",
-  "version": "1.5.1",
+  "version": "1.5.1-alpha1",
   "description": "Hapiness module for rabbitmq",
   "main": "commonjs/index.js",
   "types": "index.d.ts",

src/module/rabbitmq.extension.ts

@@ -78,7 +78,7 @@ export class RabbitMQExt implements OnExtensionLoad, OnModuleInstantiated, OnShu
                 .do(() => this.onModuleInstantiated(module, connection))
                 .subscribe(() => {}, err => {
                     errorHandler(err);
-                    const connectionError: any = new Error('@hapiness/rabbitmq Connection error');
+                    const connectionError: any = new Error('Connection error');
                     connectionError.source = err;
                     connectionError.key = 'HAPINESS_RABBITMQ_CONNECTION_ERROR';
                     connection.emit('error', connectionError);