[PATCH] clarify some error messages wrt unknown object types

[Nicolas Pitre <nico@cam.org>]

If ever new object types are added for future extensions then better 
have current git version report them as "unknown" instead of 
"corrupted".

Signed-off-by: Nicolas Pitre <nico@cam.org>

---

diff --git a/index-pack.c b/index-pack.c
index 6d6c92b..35be3e9 100644
--- a/index-pack.c
+++ b/index-pack.c
@@ -268,7 +268,7 @@ static void *unpack_raw_entry(struct object_entry *obj, union delta_base *delta_
 	case OBJ_TAG:
 		break;
 	default:
-		bad_object(obj->offset, "bad object type %d", obj->type);
+		bad_object(obj->offset, "unknown object type %d", obj->type);
 	}
 	obj->hdr_size = consumed_bytes - obj->offset;
 
diff --git a/sha1_file.c b/sha1_file.c
index 63f416b..1c4df5b 100644
--- a/sha1_file.c
+++ b/sha1_file.c
@@ -1013,7 +1013,7 @@ void packed_object_info_detail(struct packed_git *p,
 	for (;;) {
 		switch (kind) {
 		default:
-			die("corrupted pack file %s containing object of kind %d",
+			die("pack %s contains unknown object type %d",
 			    p->pack_name, kind);
 		case OBJ_COMMIT:
 		case OBJ_TREE:
@@ -1063,7 +1063,7 @@ static int packed_object_info(struct packed_git *p, unsigned long offset,
 		strcpy(type, type_names[kind]);
 		break;
 	default:
-		die("corrupted pack file %s containing object of kind %d",
+		die("pack %s contains unknown object type %d",
 		    p->pack_name, kind);
 	}