No attribute description in pvs man page.
This bug appears to have been reported against 'rawhide' during the Fedora 20 development cycle. Changing version to '20'. More information and reason for this action is here: https://fedoraproject.org/wiki/BugZappers/HouseKeeping/Fedora20
Well hidden in this sentence: The pv_attr bits are: (a)llocatable, e(x)ported and (m)issing. Maybe a new line separation could help.