lint: apply standard 12 style

Author: dougwilson

.travis.yml

@@ -28,7 +28,7 @@ before_install:
   # Setup Node.js version-specific dependencies
   - "test $TRAVIS_NODE_VERSION != '0.6' || npm rm --save-dev istanbul"
   - "test $TRAVIS_NODE_VERSION != '0.8' || npm rm --save-dev istanbul"
-  - "test $(echo $TRAVIS_NODE_VERSION | cut -d. -f1) -ge 4 || npm rm --save-dev $(grep -E '\"eslint\\S*\"' package.json | cut -d'\"' -f2)"
+  - "test $(echo $TRAVIS_NODE_VERSION | cut -d. -f1) -ge 6 || npm rm --save-dev $(grep -E '\"eslint\\S*\"' package.json | cut -d'\"' -f2)"
   # Update Node.js modules
   - "test ! -d node_modules || npm prune"
   - "test ! -d node_modules || npm rebuild"

package.json

@@ -17,13 +17,13 @@
     "toidentifier": "1.0.0"
   },
   "devDependencies": {
-    "eslint": "4.19.1",
-    "eslint-config-standard": "11.0.0",
-    "eslint-plugin-import": "2.13.0",
+    "eslint": "5.5.0",
+    "eslint-config-standard": "12.0.0",
+    "eslint-plugin-import": "2.14.0",
     "eslint-plugin-markdown": "1.0.0-beta.6",
-    "eslint-plugin-node": "6.0.1",
-    "eslint-plugin-promise": "3.8.0",
-    "eslint-plugin-standard": "3.1.0",
+    "eslint-plugin-node": "7.0.1",
+    "eslint-plugin-promise": "4.0.1",
+    "eslint-plugin-standard": "4.0.0",
     "istanbul": "0.4.5",
     "mocha": "1.21.5"
   },