git: update to v2.20.0

Update to git version v2.20.0. Required changes follow upstream commits:

* 00436bf1b1c2a8fe6cf5d2c2457d419d683042f4
  (archive: initialize archivers earlier)

* 611e42a5980a3a9f8bb3b1b49c1abde63c7a191e
  (xdiff: provide a separate emit callback for hunks)

Signed-off-by: Christian Hesse <mail@eworm.de>

1 files changed, 1 insertions, 1 deletions

diff --git a/shared.c b/shared.c
index 7560f5f..a2c0d03 100644
--- a/shared.c
+++ b/shared.c
@@ -325,7 +325,7 @@ int cgit_diff_files(const struct object_id *old_oid,
                 diff_params.flags |= XDF_IGNORE_WHITESPACE;
         emit_params.ctxlen = context > 0 ? context : 3;
         emit_params.flags = XDL_EMIT_FUNCNAMES;
-        emit_cb.outf = filediff_cb;
+        emit_cb.out_line = filediff_cb;
         emit_cb.priv = fn;
         xdl_diff(&file1, &file2, &diff_params, &emit_params, &emit_cb);
         if (file1.size)