[PATCH 30/41] submodule: convert several uses of EMPTY_TREE_SHA1_HEX

["brian m. carlson" <sandals@xxxxxxxxxxxxxxxxxxxx>]

Convert several uses of EMPTY_TREE_SHA1_HEX to use oid_to_hex and
the_hash_algo to avoid a dependency on a given hash algorithm.

Signed-off-by: brian m. carlson <sandals@xxxxxxxxxxxxxxxxxxxx>
---
 submodule.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/submodule.c b/submodule.c
index 9a50168b23..22a96b7af0 100644
--- a/submodule.c
+++ b/submodule.c
@@ -1567,7 +1567,7 @@ static void submodule_reset_index(const char *path)
 				   get_super_prefix_or_empty(), path);
 	argv_array_pushl(&cp.args, "read-tree", "-u", "--reset", NULL);
 
-	argv_array_push(&cp.args, EMPTY_TREE_SHA1_HEX);
+	argv_array_push(&cp.args, oid_to_hex(the_hash_algo->empty_tree));
 
 	if (run_command(&cp))
 		die("could not reset submodule index");
@@ -1659,9 +1659,9 @@ int submodule_move_head(const char *path,
 		argv_array_push(&cp.args, "-m");
 
 	if (!(flags & SUBMODULE_MOVE_HEAD_FORCE))
-		argv_array_push(&cp.args, old_head ? old_head : EMPTY_TREE_SHA1_HEX);
+		argv_array_push(&cp.args, old_head ? old_head : oid_to_hex(the_hash_algo->empty_tree));
 
-	argv_array_push(&cp.args, new_head ? new_head : EMPTY_TREE_SHA1_HEX);
+	argv_array_push(&cp.args, new_head ? new_head : oid_to_hex(the_hash_algo->empty_tree));
 
 	if (run_command(&cp)) {
 		ret = -1;