Update .travis.yml

Author: FabianTerhorst

.travis.yml

@@ -34,7 +34,7 @@ matrix:
         - export PATH=$MSBUILD_PATH:$PATH
         - cmake -B"visual-studio-project" -G"Visual Studio 15 2017 Win64" .
         - ls -l
-        - MSBuild.exe altv-clr-host.sln /p:Platform=x64
+        - MSBuild.exe "altv-clr-host.sln" //p:Platform="x64"
         - ls -l
 deploy:
   skip_cleanup: true