qa/555: improve grep pattern so you don't match yourself in psargs
qa/555: improve grep pattern so you don't match yourself in psargs

An old trick, but a good one (thanks kre for showing me this one
in 1978) ... replace grep '\[123]' by grep '[[]123]'

wuliming/pcp,wuliming/pcp,adfernandes/pcp,adfernandes/pcp,adfernandes/pcp,wuliming/pcp,wuliming/pcp,wuliming/pcp,adfernandes/pcp,adfernandes/pcp,adfernandes/pcp,wuliming/pcp,wuliming/pcp,adfernandes/pcp,adfernandes/pcp,wuliming/pcp