config: prettify script output and make it runnable standalone
config: prettify script output and make it runnable standalone

Change-Id: I6a59b8069231726186eefddad15ee3916b68f7e1
Closes-Bug: #1452720

nischalsheth/contrail-controller,nischalsheth/contrail-controller,sajuptpm/contrail-controller,rombie/contrail-controller,nischalsheth/contrail-controller,eonpatapon/contrail-controller,codilime/contrail-controller,nischalsheth/contrail-controller,DreamLab/contrail-controller,facetothefate/contrail-controller,tcpcloud/contrail-controller,sajuptpm/contrail-controller,hthompson6/contrail-controller,tcpcloud/contrail-controller,codilime/contrail-controller,tcpcloud/contrail-controller,nischalsheth/contrail-controller,vmahuli/contrail-controller,numansiddique/contrail-controller,codilime/contrail-controller,tcpcloud/contrail-controller,numansiddique/contrail-controller,reiaaoyama/contrail-controller,facetothefate/contrail-controller,hthompson6/contrail-controller,DreamLab/contrail-controller,tcpcloud/contrail-controller,nischalsheth/contrail-controller,sajuptpm/contrail-controller,nischalsheth/contrail-controller,hthompson6/contrail-controller,reiaaoyama/contrail-controller,facetothefate/contrail-controller,nischalsheth/contrail-controller,vpramo/contrail-controller,rombie/contrail-controller,facetothefate/contrail-controller,rombie/contrail-controller,numansiddique/contrail-controller,rombie/contrail-controller,rombie/contrail-controller,vmahuli/contrail-controller,eonpatapon/contrail-controller,eonpatapon/contrail-controller,hthompson6/contrail-controller,codilime/contrail-controller,reiaaoyama/contrail-controller,rombie/contrail-controller,DreamLab/contrail-controller,numansiddique/contrail-controller,rombie/contrail-controller,sajuptpm/contrail-controller,reiaaoyama/contrail-controller,eonpatapon/contrail-controller,vmahuli/contrail-controller,vpramo/contrail-controller,vpramo/contrail-controller,DreamLab/contrail-controller,codilime/contrail-controller,vpramo/contrail-controller,codilime/contrail-controller,facetothefate/contrail-controller,sajuptpm/contrail-controller,vpramo/contrail-controller,sajuptpm/contrail-controller,eonpatapon/contrail-controller,vmahuli/contrail-controller,hthompson6/contrail-controller,vmahuli/contrail-controller,eonpatapon/contrail-controller,tcpcloud/contrail-controller,reiaaoyama/contrail-controller,eonpatapon/contrail-controller,DreamLab/contrail-controller,numansiddique/contrail-controller