travis: Fix docutils setup

diff --git a/.travis.yml b/.travis.yml
index 73cd1f1b9c546b558f43544ccc2a406f2b677f3e..f1e368ca19d31cffdce6526c96294e810219cf3e 100644 (file)
--- a/.travis.yml
+++ b/.travis.yml
@@ -20,4 +20,5 @@ script:
 before_install:
   # gem install must be run with sudo on OSX
   - sudo gem install asciidoctor | gem install asciidoctor
+  # Different behaviour between Linux and OSX
   - sudo apt-get install python-docutils | sudo pip install docutils