Fix up file-matching in bashate tox test
Fix up file-matching in bashate tox test

The current test does not match file files in /lib/* because the
-wholename command is missing the preceeding \*.  The whole command is
a little difficult to understand.

This re-lays the find command, using -prune to skip dot directories
and keeping a hopefully clearer flow of what is being matched.

Change-Id: Idd856e897ff97095fb116294a9187ff4b198fa26

vsham20/devstack,affo/devstack,promptworks/devstack,avvocatodemarchis/devstack,upadhyay-prashant/devstack,thomasem/devstack,pacinete/devstack,noironetworks/devstack,pombredanne/devstack,bljgaurav/openstack-test,flavio-fernandes/devstack,upadhyay-prashant/devstack,Mahito/devstack,wenhuizhang/devstack,sequenceiq/devstack,HPCHub/devstack,NaokiMiyata/devstack,dtroyer/devstack,dtroyer/devstack,olivierlemasle/devstack,mmasaki/devstack,liuquansheng47/devstack,costingalan/devstack,openstack-dev/devstack,HPCHub/devstack,varunarya10/devstack,andrewrothstein/devstack,mc2014/devstack,andrewrothstein/devstack,richliu/devstack,avvocatodemarchis/devstack,LoHChina/devstack,neerja28/Devstack_GlusterFS,liuquansheng47/devstack,kplus/devstack-moonshot,bswartz/devstack,richliu/devstack,rushiagr/devstack,bljgaurav/openstack-test,herrsechs/devstack,eharney/devstack,j4/devstack,samgoon/devstack,pacinete/devstack,NaokiMiyata/devstack,ozamiatin/devstack,parul24/devstack,bigswitch/devstack,rushiagr/devstack,mssumanth/devstack,pczerkas/devstack,kplus/devstack-moonshot,dirkmueller/devstack,neerja28/Devstack_GlusterFS,group-policy/devstack,samgoon/devstack,mc2014/devstack,bq-xiao/devstack,wenhuizhang/devstack,varunarya10/devstack,pczerkas/devstack,thomasem/devstack,TwinkleChawla/devstack,mmasaki/devstack,mssumanth/devstack,Mahito/devstack,group-policy/devstack,sc68cal/devstack,parul24/devstack,bigswitch/devstack,herrsechs/devstack,promptworks/devstack,olivierlemasle/devstack,atulpatil301/devstack,nuxeh/devstack,nawawi/openstack,sequenceiq/devstack,CloudServer/devstack,pombredanne/devstack,atulpatil301/devstack,LoHChina/devstack,eharney/devstack,nawawi/openstack,openstack-dev/devstack,prithivm/branch01,prithivm/branch01,bswartz/devstack,CloudServer/devstack,noironetworks/devstack,BSJAIN92/OpenStack,vishnugonela/devstack,ozamiatin/devstack,affo/devstack,costingalan/devstack,sc68cal/devstack,TwinkleChawla/devstack,vsham20/devstack,flavio-fernandes/devstack,j4/devstack,BSJAIN92/OpenStack,bq-xiao/devstack,nuxeh/devstack,dirkmueller/devstack,vishnugonela/devstack