Update setup-node-ubuntu.bash to use portable copy method as opposed to non-portable `tar --strip-components` in unpacking step.

setup-node-ubuntu.bash

@@ -59,11 +59,14 @@ if [ -n "${NODEJS_VER}" ]; then
   fi
 
   mkdir -p ${NODEJS_UNTAR}/
-  tar xf ${NODEJS_LOCAL} -C ${NODEJS_UNTAR}/ --strip-components=1
-  rm ${NODEJS_UNTAR}/{LICENSE,CHANGELOG.md,README.md}
+  # --strip-components isn't portable, switch to portable version by performing move step after untar
+  tar xf ${NODEJS_LOCAL} -C ${NODEJS_UNTAR}/ #--strip-components=1
+  mv ${NODEJS_UNTAR}/${NODEJS_NAME}-${NODEJS_VER}-linux-${ARCH}/* ${NODEJS_UNTAR}/
+  rm -rf ${NODEJS_UNTAR}/${NODEJS_NAME}-${NODEJS_VER}-linux-${ARCH} # clean up the temporary unzip folder
+  rm ${NODEJS_UNTAR}/{LICENSE,CHANGELOG.md,README.md} 
   sudo rsync -a "${NODEJS_UNTAR}/" "$node_install_path/"
 
 
   sudo chown -R $(whoami) "$node_install_path/lib/node_modules/"
   sudo chown $(whoami) ""$node_install_path"/bin/"
-fi
+fi