Differences to the ca.po file from the Translation Project:
- An overlong line translating --filters-help was wrapped.
- "make update-po" was used to remove line numbers from the comments
to match the changes in fccebe2b4fd513488fc920e4dac32562ed3c7637
and 093490b58271e9424ce38a7b1b38bcf61b9c86c6. xz.pot in the TP
is older than these commits.
(cherry picked from commit 2230692aa1bcebb586100183831e3daf1714d60a)
In the past this wasn't done before releases; the Git repository
just contained the files from the Translation Project. But this
way it is clearer when comparing release tarballs against the
Git repository. In future releases this might no longer be necessary
within a stable branch as the .po files won't change so easily anymore
when creating a tarball.
