fix typo.  also fix download logic. If we're downloading, will download if it doesn't exist or has md5 mismatch, and force overwrite in the case of mismatch
fix typo.  also fix download logic. If we're downloading,
will download if it doesn't exist or has md5 mismatch, and force overwrite in the case of mismatch

Change-Id: I0f7095802754d2e6e250c77161ef9327f59a6322

vmware/ansible-role-chaperone,vmware/ansible-role-chaperone