Update .travis.yml; give apt-get some more arguments so it tries to update if it can't find the package

mehcode · mehcode · commit b76dc7510292 · 2015-03-05T12:22:36.000-08:00
diff --git a/.travis.yml b/.travis.yml
@@ -2,9 +2,10 @@ language: python
 python:
   - '2.7'
   - '3.3'
+  - '3.4'
 
 before_install:
-  - 'travis_retry sudo apt-get install python-dev libxml2-dev libxmlsec1-dev'
+  - 'travis_retry sudo apt-get install --fix-missing -y python-dev libxml2-dev libxmlsec1-dev'
   - 'travis_retry pip install Cython --use-mirrors'
 
 install:
