
There is no need to explicitly list the choices in the help text.
The oslo.config sample generator will include the choices automatically[0]
Also tweaks the wording of text to make it clear that it is the allowed
values which vary based on kafka version.
Change-Id: I4116e8871436097dea650f56e7b187358367d92e
0: 2488c1e1ce/oslo_config/generator.py (L263)