var/run and var/lock relative links not being compliant with Policy

[Regid Ichira <regid23@nt1.in>]

  Quoting http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=690345#5

    In sysvinit (initscripts), we were obliged to revert back to using
    absolute links for /var/run and /var/lock in this commit:
      http://anonscm.debian.org/gitweb/?p=collab-maint/sysvinit;a=commitdiff;h=0977997
    due to relative links not being compliant with Policy.  Kind of
    annoying, since the relative links made it nicer for working in
    chroots, but there are important reasons for the Policy requirement.

1. Which sections of Policy disallows relative links?
2. What important reasons for the Policy requirement are there?