src/pmchart/view.cpp: change from popen() to __pmProcessPipe() et al
src/pmchart/view.cpp: change from popen() to __pmProcessPipe() et al

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