Bump to v4.17.5.

_safeGet.js

@@ -0,0 +1,15 @@
+/**
+ * Gets the value at `key`, unless `key` is "__proto__".
+ *
+ * @private
+ * @param {Object} object The object to query.
+ * @param {string} key The key of the property to get.
+ * @returns {*} Returns the property value.
+ */
+function safeGet(object, key) {
+  return key == '__proto__'
+    ? undefined
+    : object[key];
+}
+
+export default safeGet;