.travis.yaml: Use ruby 2.3 on 0.8 branch

Fluentd 0.12.x and msgpack expect ruby < 2.4.
fluent-plugins-nursery · Nov 28, 2017 · 4a09322 · 4a09322
1 parent 75d6834
commit 4a09322
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/.travis.yml b/.travis.yml
@@ -2,3 +2,5 @@ language: ruby
 sudo: required
 services:
   - docker
+rvm:
+  - 2.3