Move to before_install

.travis.yml

@@ -276,7 +276,6 @@ addons:
 
 
 before_script:
-  - if [[ "$TRAVIS_OS_NAME" == "linux" ]]; apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv-keys 6B05F25D762E3157
   - wget --verbose --server-response -c http://rosenthalcastle.org/srb2/SRB2-v2115-assets-2.7z -O $HOME/srb2_cache/SRB2-v2115-assets-2.7z
   - 7z x $HOME/srb2_cache/SRB2-v2115-assets-2.7z -oassets
   - mkdir build
@@ -286,6 +285,7 @@ before_script:
   - cmake .. -DCMAKE_BUILD_TYPE=Release
 
 before_install:
+  - if [[ "$TRAVIS_OS_NAME" == "linux" ]]; apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv-keys 6B05F25D762E3157
   - if [[ "$TRAVIS_OS_NAME" == "osx" ]]; then curl -O -L https://www.libsdl.org/release/SDL2-2.0.6.dmg; hdiutil attach SDL2-2.0.6.dmg; sudo cp -a /Volumes/SDL2/SDL2.framework /Library/Frameworks/; fi
   - if [[ "$TRAVIS_OS_NAME" == "osx" ]]; then curl -O -L https://www.libsdl.org/projects/SDL_mixer/release/SDL2_mixer-2.0.1.dmg; hdiutil attach SDL2_mixer-2.0.1.dmg; sudo cp -a /Volumes/SDL2_mixer/SDL2_mixer.framework /Library/Frameworks/; fi
   - mkdir -p $HOME/srb2_cache