cleaned up parse_sliver_tool_status logic and docstring
cleaned up parse_sliver_tool_status logic and docstring

m-lab/mlab-ns,m-lab/mlab-ns,fernandalavalle/mlab-ns,fernandalavalle/mlab-ns,m-lab/mlab-ns,m-lab/mlab-ns,fernandalavalle/mlab-ns,fernandalavalle/mlab-ns