ci: Prevent dupe runs

caseyWebb · caseyWebb · commit 3ed6babf5f64 · 2019-04-26T13:34:01.000-05:00
diff --git a/.travis.yml b/.travis.yml
@@ -1,5 +1,9 @@
 language: node_js
 
+branches:
+  only:
+    - master
+
 node_js:
     - 11
     - lts/carbon
