build: support Node.js 12.x

dougwilson · dougwilson · commit 8ac6299da4fd · 2019-06-14T20:04:11.000-04:00
diff --git a/.travis.yml b/.travis.yml
@@ -14,6 +14,7 @@ node_js:
   - "9.11"
   - "10.15"
   - "11.10"
+  - "12.4"
 sudo: false
 cache:
   directories:
