Changing format of travis-ci pre-install commands

Author: Databean

.travis.yml

@@ -1,6 +1,6 @@
 language: cpp
 before_install: 
- - sudo add-apt-repository ppa:antumdeluge/sdl2 -qq
- - sudo apt-get update -qq
- - sudo apt-get install sdl2 -qq
+ - sudo add-apt-repository ppa:antumdeluge/sdl2 -y
+ - sudo apt-get update -y
+ - sudo apt-get install sdl2 -y
 script: make tests