emergency revert "pmmgr: replace popen usage with __pmProcessPipe ..."
emergency revert "pmmgr: replace popen usage with __pmProcessPipe ..."

This reverts commit b5de445894a47fffb71440fa7f97627bcdcf8e06.

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