[monitoring-plugins] travis-ci: Migrating to Trusty CI env

[Jan Wagner]

 Module: monitoring-plugins
 Branch: master
 Commit: f34df5bb24d8e4f64a922e9761702195516f6d25
 Author: Jan Wagner <waja at cyconet.org>
   Date: Mon Oct 19 17:57:33 2015 +0200
    URL: https://www.monitoring-plugins.org/repositories/monitoring-plugins/commit/?id=f34df5b

travis-ci: Migrating to Trusty CI env

---

 .travis.yml | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/.travis.yml b/.travis.yml
index 6af1fee..a719c10 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,7 +1,8 @@
+sudo: required
+dist: trusty
 language: c
 
 before_install:
-  - sudo add-apt-repository -y ppa:waja/precise-backports
   - sudo apt-get update -qq
   - sudo apt-get purge -qq gawk
   # ensure we have a test database in place for tests