Comment 14 for bug 1756587

Verification-done on bionic, using netplan.io 0.40.1~18.04.1:

"""
       parameters (mapping)
              Customization parameters for special bridging options. Unless otherwise specified, parameter values for
              time intervals should be expressed in milliseconds, but can also be expressed in seconds using a time
              suffix (such as "s" for seconds, "ms" for milliseconds).
"""

After discussion with Mark, I understand that there is still some work that needs to be done here to make the following entries less confusing as to the expected values and the resulting behavior, but I'd rather not block the current SRU with lots of useful new features and bugfixes based on documentation. We've progressed with the changes (effectively, the same as in the previous SRU round), and I'll process one further SRU with more documentation changes following a review of the documentation.