Update git to v1.8.2.1

This requires a small change to how we handle notes, but otherwise just
works.

Note that we can't use anything from v1.8.0 until v1.8.2.1 because some
of the symbols that we need for graph drawing were made private in
v1.8.0 and this was not reverted until v1.8.2.1.

Signed-off-by: John Keeping <john@keeping.me.uk>

1 files changed, 0 insertions, 0 deletions

diff --git a/git b/git
-Subproject 7e2010537e96d0a1144520222f20ba1dc3d6144
+Subproject 5bda18c186e455f8e65f976d3bf333ab1f4b5b5