Remove object spread to support node >=8.0.0 <8.6.0 (#164)

Author: ecmarsh

index.js

@@ -126,11 +126,10 @@ class UpdateNotifier {
 			return this;
 		}
 
-		options = {
+		options = Object.assign({
 			isGlobal: isInstalledGlobally(),
-			isYarnGlobal: isYarnGlobal()(),
-			...options
-		};
+			isYarnGlobal: isYarnGlobal()()
+		}, options);
 
 		let installCommand;
 

package.json

@@ -53,5 +53,10 @@
 		"mock-require": "^3.0.3",
 		"strip-ansi": "^5.2.0",
 		"xo": "^0.24.0"
+	},
+	"xo": {
+		"rules": {
+			"prefer-object-spread": 0
+		}
 	}
 }