Supress Warning in Travis PowerShell#2

Author: GUIGHIL benjamin

.travis.yml

@@ -1,7 +1,5 @@
 language: cpp
 
-warnings_are_errors: false
-
 git:
   depth: 1000
 
@@ -11,6 +9,7 @@ os:
 sudo: required
 dist: trusty
 osx_image: xcode8.3
+warnings_are_errors: false
 
 before_install:
   - if [[ "$TRAVIS_OS_NAME" == "osx" ]]; then