Standard way to mention copyright holder in PO files

[Nicolas François <nekral.lists@gmail.com>]

Hello,

It would be nice to have a standard way to mention copyright holders in PO
files. Currently, the copyright holders are mentioned (manually?) in the
comments of the header, for example using the template generated by
xgettext:

# SOME DESCRIPTIVE TITLE.
# Copyright (C) YEAR THE PACKAGE'S COPYRIGHT HOLDER
# This file is distributed under the same license as the PACKAGE package.
# FIRST AUTHOR <EMAIL@ADDRESS>, YEAR.

It would be nice if copyright owners could be added to that list by PO
editors. Some people do that manually, but that could be quite dangerous
to do it automatically with by tools since the comments of PO headers are
usually hand edited and contain other data.

I wonder if the copyright holders could not be specified in some header
fields. PO editors could update automatically the list of copyright
holders and dates.

I'm thinking about something like:

"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
"Language-Team: LANGUAGE <LL@li.org>\n"
"Translator[0]: FULL NAME <EMAIL@ADDRESS>, YEAR\n"
"Translator[1]: FULL NAME <EMAIL@ADDRESS>, YEAR, YEAR\n"
"Translator[2]: FULL NAME <EMAIL@ADDRESS>, YEAR, YEAR-YEAR\n"

What do you think?
-- 
Nekral