tree 0f4235a9de1df1ee14791d36e87e94340b17cc96
parent bee95e5e6318839d868dd0c4d9b451fbe3daa910
author Timothy Chavez <timothy.chavez@hp.com> 1433459931 -0500
committer Timothy Chavez <timothy.chavez@hp.com> 1433460624 -0500

Only add 'groups' file to the repo if it exists

The 'groups' file gets created only if there are groups mentioned in
the 'project.config' file.  A 'project.config' file is not required to
mention any groups, thus we should only attempt to add the 'groups' file
if it exists.

Change-Id: I333df5156bc27db29143ee412d86e12606faa751