qa/518: fix filter for multiple pmie's
qa/518: fix filter for multiple pmie's

Filter was supposed to extract pcp(1) -P output for just the QA
pmie process, but was wrong and confused in the presence of a pmie
being managed by pmmgr.

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