Avoid "Do you want to continue? [Y/n]" in Java installation (#3195)

toolset/setup/linux/languages/java.sh

@@ -5,7 +5,7 @@ fw_installed java && return 0
 # TODO: Someday get away from apt-get
 sudo add-apt-repository -y ppa:openjdk-r/ppa
 sudo apt-get update
-sudo apt-get install openjdk-8-jdk
+sudo apt-get install -qqy openjdk-8-jdk
 
 # https://bugs.launchpad.net/ubuntu/+source/ca-certificates-java/+bug/1396760
 sudo /var/lib/dpkg/info/ca-certificates-java.postinst configure