How to change order of start scripts?

[Josef Wolf]

Hello,

I have installed vdr and lirc on gutsy.  Most of the things seem to work,
but the order of the start scripts is reversed:

  jw at vdr1:/home/jw$ ls /etc/rc3.d/*lirc /etc/rc3.d/*vdr|cat
  /etc/rc3.d/S20vdr
  /etc/rc3.d/S51lirc
  jw at vdr1:/home/jw$ 

At the time vdr starts up, lirc is not available and vdr fails to use
the remote control.

I know I can change the order by simply renaming the symlinks in
/etc/rc?.d.  But I would like to use the "official" way to do this.
It looks like the comments at the beginning of the start scripts
are used to determine the order of script execution, but I can't
figure out how this system works.  AFAIK, there were significant
changes along the transition from sysvinit to upstart.

Any hints how to properly change start script order?