[PATCH v2 0/2] Make old sha1 optional with git update-ref -d

This series makes the old ref value optional for update-ref -d (it's already optional for update-ref without -d).

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Patch 1/2 updated after comments from Junio.

Karl Hasselström (2):
      Make old sha1 optional with git update-ref -d
      Clean up builtin-update-ref's option parsing

 Documentation/git-update-ref.txt |    2 +-
 builtin-update-ref.c             |   36 ++++++++++++++++++++----------------
 t/t1400-update-ref.sh            |    8 ++++++++
 3 files changed, 29 insertions(+), 17 deletions(-)