Update dev-dependencies

Author: wooorm

package.json

@@ -41,10 +41,10 @@
     "tape": "^5.0.0",
     "unist-builder": "^2.0.0",
     "xastscript": "^2.0.0",
-    "xo": "^0.34.0"
+    "xo": "^0.35.0"
   },
   "scripts": {
-    "format": "remark . -qfo && prettier . --write && xo --fix",
+    "format": "remark . -qfo && prettier . --write --loglevel warn && xo --fix",
     "test-api": "node test",
     "test-coverage": "nyc --reporter lcov tape test/index.js",
     "test-types": "dtslint types",