Narrowed down a bug in NYC that was causing CI builds to fail for Node 12 on Windows

Author: JamesMessinger

package.json

@@ -43,7 +43,7 @@
     "test:browser": "karma start --single-run",
     "test:typescript": "tsc --noEmit --strict --lib esnext test/specs/typescript-definition.spec.ts",
     "coverage": "npm run coverage:node && npm run coverage:browser",
-    "coverage:node": "nyc --reporter=text --reporter=lcov --report-dir coverage/node mocha",
+    "coverage:node": "nyc --reporter=text --reporter=lcov --report-dir coverage/node node_modules/mocha/bin/mocha",
     "coverage:browser": "npm run test:browser -- --coverage",
     "upgrade": "npm-check -u",
     "bump": "bump --tag --push --all",