chore(package): update prettier to version 1.16.1 (#1492)

package.json

@@ -38,7 +38,7 @@
     "eslint-plugin-prettier": "~3.0.0",
     "mocha": "~5.2.0",
     "nyc": "~13.1.0",
-    "prettier": "~1.15.2",
+    "prettier": "~1.16.1",
     "prettylint": "~1.0.0",
     "utf-8-validate": "~5.0.0"
   }