po/TEAMS: add new member to German translation team

Signed-off-by: Ralf Thielow <ralf.thielow@gmail.com>
l10n: de.po: change Email to E-Mail

Change all Email to E-Mail, as this is the correct form in German.

Signed-off-by: Phillip Sz <phillip.szelat@gmail.com>
Signed-off-by: Ralf Thielow <ralf.thielow@gmail.com>
l10n: de.po: use comma before "um"

This patch adds a comma before the "um". See:
http://www.duden.de/sprachwissen/rechtschreibregeln/komma#K117

Signed-off-by: Phillip Sz <phillip.szelat@gmail.com>
Signed-off-by: Ralf Thielow <ralf.thielow@gmail.com>
Merge branch 'maint' of git://github.com/git-l10n/git-po into maint

* 'maint' of git://github.com/git-l10n/git-po:
  l10n: de.po: use comma before "um"
  l10n: de.po: change Email to E-Mail
  po/TEAMS: add new member to German translation team
Merge branch 'maint'

* maint:
  l10n: de.po: use comma before "um"
  l10n: de.po: change Email to E-Mail
  po/TEAMS: add new member to German translation team
tree-walk: be more specific about corrupt tree errors

When the tree-walker runs into an error, it just calls
die(), and the message is always "corrupt tree file".
However, we are actually covering several cases here; let's
give the user a hint about what happened.

Let's also avoid using the word "corrupt", which makes it
seem like the data bit-rotted on disk. Our sha1 check would
already have found that. These errors are ones of data that
is malformed in the first place.