[PATCH v4 0/2] New @ shortcut for HEAD

Hi,

Same patches as before, except that the cleanup ones are in a different series, and this one doesn't depend on the other one.

Felipe Contreras (2):
  sha1_name: refactor reinterpret()
  Add new @ shortcut for HEAD

 Documentation/git-check-ref-format.txt |  2 ++
 Documentation/revisions.txt            |  3 ++
 refs.c                                 |  4 +++
 sha1_name.c                            | 59 +++++++++++++++++++++++-----------
 t/t1508-at-combinations.sh             |  2 ++
 5 files changed, 51 insertions(+), 19 deletions(-)