How to do Git Log see only merges to master branch?

In my work process I need to provide a list of files to my server admin.
The list comes from the merge of my working branch (Branch A) into Master branch.

So I merge branch A into branch Master and then deploy Master.

Right now the best I could do with git log is the following but this list contains other commit as well ( not only the merge I’m looking for ):
git log -m --name-only --author=[NAME]

So basically I need to retrieve the files list for the merge of Branch A into Master Branch

Is it possible with cli command ?

Git Baby is a git and github fan, let's start git clone.