pmlogcheck: add <mark> record and verbosity support
pmlogcheck: add <mark> record and verbosity support

More fallout and code fixes from the analysis of
http://oss.sgi.com/bugzilla/show_bug.cgi?id=1100

Previously, pmlogcheck was clueless about <mark> records and
generated false reports (especially counter wraps) as a consequence.

andyvand/cygpcpfans,andyvand/cygpcpfans,prasincs/pcp,prasincs/pcp,wuliming/pcp,aeg-aeg/pcpfans,tjanez/pcp,tjanez/pcp,adfernandes/pcp,aeg-aeg/pcpfans,aeg-aeg/pcpfans,aeg-aeg/pcpfans,andyvand/cygpcpfans,aeg-aeg/pcpfans,wuliming/pcp,tjanez/pcp,adfernandes/pcp,wuliming/pcp,edwardt/pcp,prasincs/pcp,adfernandes/pcp,tjanez/pcp,wuliming/pcp,tjanez/pcp,andyvand/cygpcpfans,andyvand/cygpcpfans,wuliming/pcp,wuliming/pcp,prasincs/pcp,prasincs/pcp,edwardt/pcp,adfernandes/pcp,tjanez/pcp,edwardt/pcp,adfernandes/pcp,andyvand/cygpcpfans,aeg-aeg/pcpfans,aeg-aeg/pcpfans,adfernandes/pcp,edwardt/pcp,adfernandes/pcp,prasincs/pcp,adfernandes/pcp,prasincs/pcp,edwardt/pcp,edwardt/pcp,tjanez/pcp,andyvand/cygpcpfans,andyvand/cygpcpfans,edwardt/pcp,prasincs/pcp,tjanez/pcp,aeg-aeg/pcpfans,wuliming/pcp,wuliming/pcp,edwardt/pcp