build: use precise dist on Travis

dougwilson · dougwilson · commit 03966ad0f862 · 2017-08-18T20:09:36.000-04:00
diff --git a/.travis.yml b/.travis.yml
@@ -12,6 +12,7 @@ node_js:
   - "6.10"
   - "7.10"
 sudo: false
+dist: precise
 cache:
   directories:
     - node_modules
