gitk: Recode de.po to UTF-8
gitk: Recode de.po to UTF-8

Somehow de.po got recoded to latin-1 in the process of committing it.
This recodes it back to UTF-8.

Signed-off-by: Paul Mackerras <19a0ba370c443ba08d20b5061586430ab449ee8c@samba.org>

destenson/git,destenson/git,destenson/git,destenson/git,destenson/git,destenson/git,destenson/git,destenson/git