chore - fixing eslint-scope to a safe version; resolves babel#656. (babel#657)

Author: neverendingqs

package.json

@@ -15,7 +15,7 @@
     "@babel/parser": "7.0.0-beta.52",
     "@babel/traverse": "7.0.0-beta.52",
     "@babel/types": "7.0.0-beta.52",
-    "eslint-scope": "~3.7.1",
+    "eslint-scope": "3.7.1",
     "eslint-visitor-keys": "^1.0.0"
   },
   "scripts": {