add openjdk11 to CI matrix

SethTisue · SethTisue · commit b9fe697bc8f4 · 2019-02-14T14:33:18.000-08:00
also sudo false is no longer a thing on Travis
diff --git a/.travis.yml b/.travis.yml
@@ -1,9 +1,8 @@
 language: scala
 
-sudo: false
-
 jdk:
   - oraclejdk8
+  - openjdk11
 
 scala:
   # no 2.13 for now in cross-build because of
