save install-icc to a file

Author: Joan Massich

.travis.yml

@@ -8,7 +8,8 @@ addons:
       - ubuntu-toolchain-r-test
 
 before_install:
-  - wget -q -O /dev/stdout 'https://raw.githubusercontent.com/nemequ/icc-travis/master/install-icc.sh'
+  - wget -q -O install-icc.sh 'https://raw.githubusercontent.com/nemequ/icc-travis/master/install-icc.sh'
+  - chmod +x install-icc.sh
   - ./install-icc.sh
 
 script: