odb: error when we can't create object header

Return an error to the caller when we can't create an object header for
some reason (printf failure) instead of simply asserting.

1 files changed, 1 insertions, 1 deletions

diff --git a/src/odb.h b/src/odb.h
index 6845b22f1..b354108e7 100644
--- a/src/odb.h
+++ b/src/odb.h
@@ -70,7 +70,7 @@ int git_odb__hashobj(git_oid *id, git_rawobj *obj);
 /*
  * Format the object header such as it would appear in the on-disk object
  */
-int git_odb__format_object_header(char *hdr, size_t n, git_off_t obj_len, git_otype obj_type);
+int git_odb__format_object_header(size_t *out_len, char *hdr, size_t hdr_size, git_off_t obj_len, git_otype obj_type);
 /*
  * Hash an open file descriptor.
  * This is a performance call when the contents of a fd need to be hashed,