Fix Travis

sindresorhus · sindresorhus · commit 646f30ba82d3 · 2018-11-05T17:50:10.000+07:00
diff --git a/.travis.yml b/.travis.yml
@@ -2,4 +2,3 @@ language: node_js
 node_js:
   - '10'
   - '8'
-  - '6'

-Original file line number
+Diff line change
 node_js:
   - '10'
   - '8'
 -  - '6'