08-git-and-other-scms: do not redirect to users.txt and fix German translation

The output of the "svn log --xml" command should not be redirected
to the users.txt file automatically. The paragraph below the command
says the user should do so manually.
This regression has been introduced by commit 242709838456a7be97aae819df54c7278c2d6da3
because the German translation says the output is redirected to
the users.txt file. So the German translation gets fixed, too.