Fix bad copy paste in cib_perform_op()

[dyupina]

When calling crm_xml_add() use client instead of user

[knet-jenkins]

Can one of the project admins check and authorise this run please: https://ci.kronosnet.org/job/pacemaker/job/pacemaker-pipeline/job/PR-4038/1/input

[nrwahl2]

Thanks! The fix looks good. Can you use the first part of the commit message from 86be2e4?

Fix: libcib: Fix setting origin attributes in CIB updates

This fixes a regression introduced by 53d4d34. The update-client
attribute was being set to the user instead of the update client.

This affects the outputs of the following public API functions and CLI
tools (via the cluster-status message with pcmk_section_times set):
* pcmk_simulate()
* pcmk_status()
* crm_mon
* crm_simulate

[dyupina]

Hello! Ok, I'll resend it now

UPD: #4040

[wenningerk]

Some people do close a PR and open a new one whenever they change something to keep the previous branch and commits and everything matching with previous comments.
Just wanted to make sure you know that you can just push (amend your previous commit and push with +HEAD) to your old branch as well and github will jump on that change.

[dyupina]

@wenningerk Hello! Thank you very much, I didn't know that amend and force push would also update the pull request. Now I won't have to recreate PRs anymore