Workaround for a bug in Nyc that was causing CI builds to fail for Node 12 on Windows

Author: JamesMessinger

.travis.yml

@@ -7,8 +7,9 @@ filter_secrets: false
 language: node_js
 
 node_js:
-  - 10
   - 8
+  - 10
+  - 12
 
 os:
   - linux

package.json

@@ -39,8 +39,8 @@
     "build": "tsc",
     "watch": "tsc --watch",
     "test": "mocha && npm run lint",
-    "coverage": "nyc --reporter=text --reporter=lcov mocha",
     "upgrade": "npm-check -u",
+    "coverage": "nyc --reporter=text --reporter=lcov node_modules/mocha/bin/mocha",
     "bump": "bump --tag --push --all",
     "release": "npm run upgrade && npm run clean && npm run build && npm test && npm run bump"
   },