interp.c - no interpolation for PM_TYPE_EVENT metrics
interp.c - no interpolation for PM_TYPE_EVENT metrics

pmFetch will return with numval set to PM_ERR_TYPE should this
be attempted.

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