Comment 7 for bug 2015420

Please clarify the test case regarding what has to be done to get rid of the ESM messages in MOTD. Show the change, where, then the commands, and expected output.

It says:
"""
On real systems, adding --no-esm-messages to the conf script and making sure it updates the MOTDs should remove ESM related messages for the same scenarios above.
"""

Please clarify what conf script, which line, which position, etc. Those files are sensitive to syntax, and a mistake there could break things. I don't even recall us ever handing out instructions like these in the past, where we direct users to edit system configuration files by hand.

There is also:
"""
The flag should be added according to what is described in https://github.com/canonical/ubuntu-pro-client/blob/docs-devel/docs/explanations/motd_messages.md#source-motd-about-available-updates
"""

I rather have it described in the bug, instead of a file in git that might disappear or change in the (near) future. Users interested in this feature will follow the bug link and arrive here, and the test case should be clear enough to show how to make the change, if wanted, safely.