Add add_(pre|post|preun|postun) to Subpackage, and write out subpackage scriptlets in gather_spec_file
rebased onto 7784f1e86b15ae7a1b992860f6726388adf292cc
Pull-Request has been merged by jhutar
Add add_(pre|post|preun|postun) to Subpackage, and write out subpackage
scriptlets in gather_spec_file