Specify -y for upgrade.

diff --git a/.travis.yml b/.travis.yml
index 3bec7e390c6d548944240850f0dc03c396b39587..7e3fcc618e6182e2cb960e357debb5065319d5b2 100644 (file)
--- a/.travis.yml
+++ b/.travis.yml
@@ -9,7 +9,7 @@ before_script:
   - sudo add-apt-repository ppa:ubuntu-toolchain-r/test -y
   - sudo apt-get update -y
   - sudo apt-get install qemu-kvm libxen-dev g++-4.8 -y
-  - sudo apt-get upgrade binutils
+  - sudo apt-get upgrade binutils -y
 
 env:
   - PLATFORM=hw MACHINE=x86_64 TESTS=qemu EXTRAFLAGS= MYCXX='g++-4.8'