try the env instead for travis ci

Ronald Holshausen · Ronald Holshausen · commit e58114f2e6a1 · 2014-07-19T19:33:52.000+10:00
diff --git a/.travis.yml b/.travis.yml
@@ -4,5 +4,5 @@ jdk:
   - oraclejdk7
   - openjdk7
   - oraclejdk8
-before_script:
- - "export JAVA_OPTS=-XX:MaxPermSize=256m"
+env:
+  - JAVA_OPTS=-XX:MaxPermSize=256m
