Fixes the v2 GET /extensions curl example in the documentation.
Fixes the v2 GET /extensions curl example in the documentation.

Change-Id: I2bca0acd4fbc19547be6f5b872ad873938779894

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