K 10
svn:author
V 7
trociny
K 8
svn:date
V 27
2013-05-08T19:11:47.961716Z
K 7
svn:log
V 146
Make errbuf optional, so if a caller is not interested in an error
message she can pass NULL (procstat(1) already does this).

MFC after:	2 weeks

END