message: Fix android-ndk extract path
diff: @@ -115,7 +115,7 @@ jobs:
  - chmod +x "./travis/travis-get-ue.sh"
  - "./travis/travis-get-ue.sh"
  - wget -q https://dl.google.com/android/repository/android-ndk-r21e-linux-x86_64.zip
  - - unzip -qq -d $HOME/android-ndk-r21e android-ndk-r21e-linux-x86_64.zip
  + - unzip -qq -d $HOME/ android-ndk-r21e-linux-x86_64.zip
  script:
  - export ANDROID_NDK_ROOT=$HOME/android-ndk-r21e
  - export CESIUM_UNREAL_VERSION=$(git describe)
  