Actually use changed variable

lib/ansible/modules/cloud/openstack/os_security_group.py

@@ -115,8 +115,8 @@ def main():
         if module.check_mode:
             module.exit_json(changed=_system_state_change(module, secgroup))
 
+        changed = False
         if state == 'present':
-            changed = False
             if not secgroup:
                 secgroup = cloud.create_security_group(name, description)
                 changed = True
@@ -126,14 +126,13 @@ def main():
                         secgroup['id'], description=description)
                     changed = True
             module.exit_json(
-                changed=True, id=secgroup.id, secgroup=secgroup)
+                changed=changed, id=secgroup.id, secgroup=secgroup)
 
         if state == 'absent':
-            if not secgroup:
-                module.exit_json(changed=False)
-            else:
+            if secgroup:
                 cloud.delete_security_group(secgroup['id'])
-                module.exit_json(changed=True)
+                changed=True
+            module.exit_json(changed=changed)
 
     except shade.OpenStackCloudException as e:
         module.fail_json(msg=e.message)