[libvirt] [PATCH] travis: Update name for Ubuntu 18.04 image

[Andrea Bolognani]

The corresponding libvirt-jenkins-ci commit is f289e64a5fd9.

Signed-off-by: Andrea Bolognani <abologna at redhat.com>
---
Pushed as trivial.

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

diff --git a/.travis.yml b/.travis.yml
index b47f54553e..44ff5e9898 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -21,7 +21,7 @@ matrix:
     - services:
         - docker
       env:
-        - IMAGE="ubuntu-18"
+        - IMAGE="ubuntu-1804"
         - MAKE_ARGS="syntax-check distcheck"
       script:
         - make -C ci/ ci-build@$IMAGE CI_MAKE_ARGS="$MAKE_ARGS"
-- 
2.23.0