Comment 14 for bug 1634304

Upstream responded to my question about the default architecture:

 https://github.com/virt-manager/virt-manager/commit/3f15a489cda87f8028828d567848193dd2640a43#commitcomment-20176018

The comment is wrong but, more importantly, the code is considered to be correct. There's no need to update this SRU or the Zesty upload to simply change the comment.