Merge remote-tracking branch 'origin/greenkeeper-yargs-7.0.2'

Author: Ivan Demidov

package.json

@@ -40,7 +40,7 @@
     "globby": "^6.1.0",
     "post-load-plugins": "0.0.13",
     "posthtml": "^0.9.2",
-    "yargs": "^6.6.0"
+    "yargs": "^7.0.2"
   },
   "devDependencies": {
     "ava": "*",