message: Add trace-cmd-setup.sh note
diff: @@ -8,7 +8,7 @@ if [ -z "${TRACECMD}" ]; then
  fi
  if [ ! -u "${TRACECMD}" ]; then
  - echo "ERROR: ${TRACECMD} setuid not set"
  + echo "ERROR: ${TRACECMD} setuid bit not set. Run trace-cmd-setup.sh?"
  exit -1
  fi
  