Description of problem:

virt-make-fs should set the partition ID (for MBR, or whatever
the equivalent is for GPT).  The problem at the moment is that
if you create a filesystem containing FAT or NTFS, then Windows
guests refuse to "see" the filesystem until you manually set
the partition type.

Version-Release number of selected component (if applicable):

1.13.21

How reproducible:

100%

Steps to Reproduce:
1. Use virt-make-fs to create a Windows filesystem.
2. Attach it to a Windows guest.
  
Actual results:

Windows guest doesn't see any content and refuses to mount
the partition, until you set the partition type byte, eg.
setting it to 7 if it's NTFS.

Expected results:

We can't fix Windows, so we have to fix virt-make-fs instead.

Additional info:

Linux naturally doesn't care.