normalize exit definition

Author: particlebanana

machines/release-connection.js

@@ -46,6 +46,7 @@ module.exports = {
       outputVariableName: 'report',
       outputDescription: 'The `meta` property is reserved for custom driver-specific extensions.',
       example: {
+        error: '===',
         meta: '==='
       }
     }

machines/send-native-query.js

@@ -68,6 +68,7 @@ module.exports = {
       outputVariableName: 'report',
       outputDescription: 'The `meta` property is reserved for custom driver-specific extensions.',
       example: {
+        error: '===',
         meta: '==='
       }
     }