Bug#336342: Clarify permitted epoch values and numeric versions

[Florian Weimer <fw@deneb.enyo.de>]

Package: debian-policy
Version: 3.6.2.1
Severity: normal

In section 5.6.12, the permitted epoch values are not specified
precisely.  Large epochs tend to cause problems for some tools, for
example dpkg, whose behavior is even architecture-specific.  There
might be other problems throughout the toolchain.

Maybe Policy should be changed to reflect this, from

  "This is a single (generally small) unsigned integer."

to:

  "This is a single unsigned integer, consisting of at most 8 digits,
  but it is generally much smaller."