use sudo: required and dist: trusty on Travis

tkelman · tkelman · commit 644a6c1f8ef2 · 2015-10-12T12:27:32.000-07:00
may help with #11553 ? [av skip]
diff --git a/.travis.yml b/.travis.yml
@@ -5,6 +5,8 @@ os:
 env:
     - ARCH="i686"
     - ARCH="x86_64"
+sudo: required
+dist: trusty
 matrix:
   exclude:
     - os: osx
