message: Load kitware key in a nicer way.
diff: @@ -7,9 +7,8 @@ echo "========================================"
  echo "Host adding PPAs"
  echo "----------------------------------------"
  sudo apt-add-repository 'ppa:ubuntu-toolchain-r/test'
  +wget -O - https://apt.kitware.com/keys/kitware-archive-latest.asc 2>/dev/null | sudo apt-key add -
  sudo add-apt-repository 'deb https://apt.kitware.com/ubuntu/ xenial main'
  -wget -Okitware-key.asc https://apt.kitware.com/keys/kitware-archive-latest.asc
  -sudo apt-key add kitware-key.asc
  echo "----------------------------------------"
  echo
  