Description of problem:
As we discussed, there should be a function to get partition name corresponding to "part-set-name" , such as "part-get-name"
Version-Release number of selected component (if applicable):
latest dev version v1.3.13
Steps to Reproduce:
With the above commits, part of libguestfs >= 1.25.33, there is a new API, part-get-name, which works only on GPT layouts.