The v5.2 branch won't get any translation updates so the fuzzy
strings and obsolete strings are all useless. Cleaning them up
makes the files smaller and less messy to compare.
./update-po
for I in *.po
do
msgattrib --clear-fuzzy --clear-previous --empty \
--no-obsolete --no-wrap "$I" > tmp
mv tmp "$I"
done
The po4a run gave "Parse error at" message from fr.po but
after the fr.po was rewritten the error is gone.