.travis.yml: Change node_js from "5" to node

syoichi · syoichi · commit 04468fab2b37 · 2016-07-24T16:49:40.000+09:00
diff --git a/.travis.yml b/.travis.yml
@@ -1,5 +1,5 @@
 sudo: false
 language: node_js
-node_js: "5"
+node_js: node
 branches:
   only: master
