German translation for "Log work done" ist bad

Greetings from Berlin, Germany!

The German translation for the Link "Log work done" had been translated into "Work had been logged", which is quite misleading...
This bad translation suggests the Work-Log had been edited already, and therefore everything is cool and there's nothing to do.

Would you please fix this Issue and get the old translation ("Arbeitszeit protokollieren") back?

BTW, we'd just upgraded from the 3.6.5 to the newest 3.10.2 Version, and i must say: - the German translation of JIRA had turned poor.
Is there a way to get the "old" translation back into the System?
(e.g. by copying of the old language-file over the new one and overwriting it...)

Cheers,

Alex