Bug#476810: Please clarify 12.5, "Copyright information"

[Matthias Klose <doko@cs.tu-berlin.de>]

Package: debian-policy
Version: 3.7.3.0

12.5 currently reads: "/usr/share/doc/package may be a symbolic link
to another directory in /usr/share/doc only if the two packages both
come from the same source and the first package Depends on the
second. These rules are important because copyrights must be
extractable by mechanical means."

Proposing to clarify this to "... come from the same source and the
first package directly or indirectly depends on the second ...". For
the intention mentioned in the last sentence ("must be extractable by
mechanical means") it doesn't matter if the dependency is direct or
indirect. If there are other reasons for the stricter direct
dependency, please clarify this as "directly depends".