Update Travis YML to explicitly use Ubuntu 14.04 (#959)

* add explict tahr reference * Update .travis.yml Co-Authored-By: Joe White <jpwhite4@buffalo.edu>
ubccr · Jun 12, 2019 · f68f4e6 · f68f4e6
1 parent 15b7045
commit f68f4e6
Showing 1 changed file with 1 addition and 0 deletions.
diff --git a/.travis.yml b/.travis.yml
@@ -3,6 +3,7 @@ sudo: false
 
 # Specify the build matrix
 language: php
+dist: trusty
 php:
     - '5.4'
     - '7.0'