Updated the cli format to match the latest version of pegleg
OLD Pegleg CLI format:
pegleg -v site -p /workspace/primary_repo -a /workspace/auxillary_repo1 -a /workspace/auxillary_repo2 collect -s /collect site_data
NEW Pegleg CLI format:
pegleg -v site -r /workspace/primary_repo collect -s /collect site_data
Change-Id: I23cff261c206c29b3b02869f38fee5273dc53503