Upgrade eslint 5.11.1 -> 5.12.0

Author: ehmicky

package-lock.json

@@ -63,7 +63,7 @@
     "@babel/preset-env": "^7.2.3",
     "ava": "^1.0.1",
     "cross-fetch": "^3.0.0",
-    "eslint": "^5.11.1",
+    "eslint": "^5.12.0",
     "eslint-config-prettier": "^3.3.0",
     "eslint-config-standard": "^12.0.0",
     "eslint-config-standard-prettier-fp": "^9.0.0",