dh_dwarf2sources: Copy in copyright information from external sources
This will copy the copyright and copyright_report files for any packages
whose files are found inside the resulting binaries, making them
available at /usr/share/doc/PACKAGE/PACKAGE_external_licenses_ARCH.
Although this task strictly isn't related to dwarf2sources itself,
keeping it here is far simpler than adding an extra debhelper script.
https://phabricator.apertis.org/T8554
Signed-off-by: Ryan Gonzalez ryan.gonzalez@collabora.com
In draft status because this is useless until cargo!14 (merged) is merged.
Edited by Ryan Gonzalez