Rename of keystone_admin_group variable.

It has been moved to keystone_swift_operator_roles

Change-Id: I74db43379fac55c75efcfbb5f7328c41661b5578
diff --git a/files/swift/proxy-server.conf b/files/swift/proxy-server.conf
index 2db6d32..d7ed485 100644
--- a/files/swift/proxy-server.conf
+++ b/files/swift/proxy-server.conf
@@ -16,7 +16,7 @@
 use = egg:swiftkeystone2#keystone2
 keystone_admin_token = %SERVICE_TOKEN%
 keystone_url = http://localhost:35357/v2.0
-keystone_admin_group = Member
+keystone_swift_operator_roles = Member
 
 [filter:tempauth]
 use = egg:swift#tempauth