Bumping up travis' nodejs version

jung-kim · jung-kim · commit 80bdf20c0b96 · 2018-01-08T16:15:43.000-08:00
diff --git a/.travis.yml b/.travis.yml
@@ -1,2 +1,2 @@
 language: node_js
-node_js: ["iojs"]
+node_js: ["nodejs"]
