K 10
svn:author
V 3
pjd
K 8
svn:date
V 27
2012-06-11T19:57:31.869531Z
K 7
svn:log
V 294
Introduce closefp() function that we will be able to use to eliminate
code duplication in kern_close() and do_dup().

This is committed separately from the actual removal of the duplicated
code, as the combined diff was very hard to read.

Discussed with:	kib
Tested by:	pho
MFC after:	1 month

END