submodule: convert several uses of EMPTY_TREE_SHA1_HEX

Convert several uses of EMPTY_TREE_SHA1_HEX to use empty_tree_oid_hex to
avoid a dependency on a given hash algorithm.

Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/submodule.c b/submodule.c
index 9a50168b2375d9cac306a22c8be4559dde114d95..ee7eea4877220bf1f614f4e9d2cce265243989e9 100644 (file)
--- 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, empty_tree_oid_hex());
 
        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 : empty_tree_oid_hex());
 
-       argv_array_push(&cp.args, new_head ? new_head : EMPTY_TREE_SHA1_HEX);
+       argv_array_push(&cp.args, new_head ? new_head : empty_tree_oid_hex());
 
        if (run_command(&cp)) {
                ret = -1;