message: [CI] Xvfb: tweak contour debug logging.
diff: @@ -21,9 +21,12 @@ shift
  ldd `which contour`
  +#LOG="pty,gui.session,gui.display,vt.renderer"
  +LOG="all"
  +
  $CONTOUR_PREFIX \
  contour terminal \
  - debug pty,gui.session,gui.display,vt.renderer \
  + debug "$LOG" \
  display ${DISPLAY} \
  early-exit-threshold 0 \
  dump-state-at-exit "${DUMP_DIR}" \
  