chore: report unused disable directives in eslint

Author: brettz9

package.json

@@ -62,8 +62,8 @@
     "build": "rm -fr ./dist && NODE_ENV=production babel ./src --out-dir ./dist --copy-files --source-maps",
     "check-readme": "babel-node ./src/bin/generateReadme.js --check",
     "create-readme": "babel-node ./src/bin/generateReadme.js",
-    "lint-fix": "eslint --fix ./src ./test",
-    "lint": "eslint ./src ./test",
+    "lint-fix": "eslint --report-unused-disable-directives --fix ./src ./test",
+    "lint": "eslint --report-unused-disable-directives ./src ./test",
     "test-cov": "BABEL_ENV=test nyc mocha --recursive --require @babel/register --reporter progress --timeout 9000",
     "test-no-cov": "BABEL_ENV=test mocha --recursive --require @babel/register --reporter progress --timeout 9000",
     "test-index": "BABEL_ENV=test mocha --recursive --require @babel/register --reporter progress --timeout 9000 test/rules/index.js",