K 10
svn:author
V 3
jhb
K 8
svn:date
V 27
2013-11-12T19:44:18.760185Z
K 7
svn:log
V 404
Add a pre-world mode of updating similar to the -p option that can be
passed to mergemaster.  In this mode, only changes to /etc/master.passwd
and /etc/group are merged to /etc.  In addition, it uses a temporary
tree to stage these changes rather than overwriting the existing
'current' and 'previous' trees so that a full update can be run after
a normal installworld has completed.

MFC after:	2 weeks

END