fix unparseable JSON
fix unparseable JSON

- use only double quotes
- remove trailing commas for last element
- add trailing newline

Change-Id: I3f47a25cdac429d95319ca80c6622b9cb1460446
Closes-Bug: #1249117

dsiddharth/access-keys,rajalokan/keystone,takeshineshiro/keystone,ajayaa/keystone,rushiagr/keystone,rodrigods/keystone,UTSA-ICS/keystone-kerberos,klmitch/keystone,promptworks/keystone,rushiagr/keystone,roopali8/keystone,promptworks/keystone,vivekdhayaal/keystone,jumpstarter-io/keystone,blueboxgroup/keystone,vivekdhayaal/keystone,idjaw/keystone,jumpstarter-io/keystone,jamielennox/keystone,openstack/keystone,JioCloud/keystone,ajayaa/keystone,derekchiang/keystone,klmitch/keystone,openstack/keystone,nuxeh/keystone,MaheshIBM/keystone,dims/keystone,reeshupatel/demo,blueboxgroup/keystone,ilay09/keystone,ilay09/keystone,UTSA-ICS/keystone-kerberos,idjaw/keystone,takeshineshiro/keystone,rajalokan/keystone,cernops/keystone,vivekdhayaal/keystone,dsiddharth/access-keys,maestro-hybrid-cloud/keystone,MaheshIBM/keystone,reeshupatel/demo,promptworks/keystone,ilay09/keystone,dstanek/keystone,mahak/keystone,jonnary/keystone,roopali8/keystone,nuxeh/keystone,dstanek/keystone,maestro-hybrid-cloud/keystone,dsiddharth/access-keys,jumpstarter-io/keystone,rushiagr/keystone,mahak/keystone,derekchiang/keystone,rajalokan/keystone,jamielennox/keystone,himanshu-setia/keystone,rodrigods/keystone,mahak/keystone,nuxeh/keystone,himanshu-setia/keystone,ging/keystone,cernops/keystone,reeshupatel/demo,dims/keystone,jonnary/keystone,ging/keystone,dstanek/keystone,JioCloud/keystone,openstack/keystone,derekchiang/keystone