K 10
svn:author
V 4
ngie
K 8
svn:date
V 27
2017-03-16T02:31:42.764622Z
K 7
svn:log
V 312
Return NULL instead of 0 on failure in _kvm_open, kvm_open{,2,files}

This is being done for the following reasons:
- kvm_open(3), etc says they will return NULL.
- NULL by definition is (void*)0 per POSIX, but can be redefined,
  depending on the compiler, etc.

MFC after:	1 week
Sponsored by:	Dell EMC Isilon

END