pmdaroot: consistency in presence of missing names
pmdaroot: consistency in presence of missing names

Additional diagnostics and code to make handling of docker
configs without Name consistent, and less error prone.

adfernandes/pcp,adfernandes/pcp,adfernandes/pcp,adfernandes/pcp,adfernandes/pcp,adfernandes/pcp,adfernandes/pcp,adfernandes/pcp