saltstack/salt — pull request #4284 by dlindquist (2013-03-26 17:15:26+00:00)
Title: Add XenServer to grains and set proper virtual pkg

Add XenServer to _OS_FAMILY and set usage of yumpk5 for XenServer 6 and below. This is very similar to #4277.

Relavent grains from XenServer 6 (after this patch):
'os': 'XenServer',
'os_family': 'RedHat',
'oscodename': 'xenenterprise',
'osfullname': 'XenServer',
'osrelease': '6.0.0',
'virtual': 'xen',
'virtual_subtype': 'Xen Dom0'