message: fix directory check
diff: @@ -5,7 +5,7 @@ ROOT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")/.." >/dev/null 2>&1 && pwd)"
  LAUNCHER_DIR="$ROOT_DIR/../"
  # NCTL compile requires casper-node-launcher
  -if [ ! -d "$LAUNCHER_DIR" ]; then
  +if [ ! -d "$LAUNCHER_DIR/casper-node-launcher" ]; then
  pushd $LAUNCHER_DIR
  git clone https://github.com/CasperLabs/casper-node-launcher.git
  fi
  