Test lcov for CodeClimate

package.json

@@ -6,7 +6,7 @@
   "scripts": {
     "clean": "node ./clean.js",
     "test": "node ./test.js",
-    "coverage": "nyc --reporter=lcovonly --report-dir=./coverage npm run test"
+    "coverage": "nyc --reporter=lcov --report-dir=./coverage npm run test"
   },
   "repository": {
     "type": "git",