[PATCH v2 0/5] SHA1DC fixes & fully moving to a git.git submodule

Here's v2 as promised. Comments per-patch.

Ævar Arnfjörð Bjarmason (5):
  Makefile: don't error out under DC_SHA1_EXTERNAL if
    DC_SHA1_SUBMODULE=auto

Fixed indenting.

  Makefile: under "make dist", include the sha1collisiondetection
    submodule

NEW: Change "make dist" to include the sha1collisiondetection/ dir in
the tarball Junio's going to build when he makes releases, right now
we just ship an empty directory.

  sha1dc_git.h: re-arrange an ifdef chain for a subsequent change

No changes, trivial rewording of commit message.

  Makefile: use the sha1collisiondetection submodule by default

s/NO_DC_SHA1_SUBMODULE=UnfortunatelyYes/NO_DC_SHA1_SUBMODULE=NoThanks/ as requested by Junio.

Fix up wording of comment describing NO_DC_SHA1_SUBMODULE

Fix indenting.

  sha1dc: remove in favor of using sha1collisiondetection as a submodule

Reword & expand commit message.

Don't die if both NO_DC_SHA1_SUBMODULE=Y and DC_SHA1_EXTERNAL=Y are provided.

 Makefile              |   42 +-
 sha1dc/.gitattributes |    1 -
 sha1dc/LICENSE.txt    |   30 -
 sha1dc/sha1.c         | 1900 -------------------------------------------------
 sha1dc/sha1.h         |  110 ---
 sha1dc/ubc_check.c    |  372 ----------
 sha1dc/ubc_check.h    |   52 --
 sha1dc_git.h          |    6 +-
 8 files changed, 27 insertions(+), 2486 deletions(-)
 delete mode 100644 sha1dc/.gitattributes
 delete mode 100644 sha1dc/LICENSE.txt
 delete mode 100644 sha1dc/sha1.c
 delete mode 100644 sha1dc/sha1.h
 delete mode 100644 sha1dc/ubc_check.c
 delete mode 100644 sha1dc/ubc_check.h