Steps to reproduce

At the root of your ezpublish_legacy folder, run the following commands. Use an existing nodeId on your setup and make sure it has children and grandchildren.

• Create the package

  php -C ezpm.php create test_package2 "Test Package Creation2"
  

• Add subtree

  php -C ezpm.php add test_package2 ezcontentobject --exclude-templates --exclude-classes --siteaccess=eng 74
  

• Export package on the file system

  php -C ezpm.php export test_package2 --output -d /your/folder
  

Grandchildren won't be included in the package.