[PATCH] .travis.yml: ensure python3-sphinx installed for docs

[Alex Bennée]

Signed-off-by: Alex Bennée <alex.ben...@linaro.org>
---
 .travis.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/.travis.yml b/.travis.yml
index c1c6df475a8..8bdebd36c1f 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -194,7 +194,7 @@ matrix:
       addons:
         apt:
           packages:
-            - python-sphinx
+            - python3-sphinx
             - texinfo
             - perl
 
-- 
2.20.1