`greetingMsg`?
`greeting`?
Naming the other one differently?
Splitting the work done with that message and the work done with this message into their own functions?
Frankly, this always sounded like a readability issue seeking a readability problem. Splitting because the names clash, because you decided to name things, because a one-liner was less than ideally readable.
You don't have to write something like "this is the message", you can see it.