When downloading a keytab to a file that already exists, merge the new

keytab keys into that file rather than moving aside the old keytab and
creating a new keytab with only the new keys.

Also fix get handling in the client for all types other than keytabs.
This isn't visible yet since the server doesn't yet support other types
of objects.

1 files changed, 0 insertions, 0 deletions

diff --git a/tests/data/fake-keytab-2 b/tests/data/fake-keytab-2
new file mode 100644
index 0000000..0440930
--- /dev/null
+++ b/tests/data/fake-keytab-2