grep: use grep_opt->repo instead of explict repo argument

diff --git a/builtin/difftool.c b/builtin/difftool.c
index b41a9199ff441579655c91fc692211257e4e91ed..544b0e86397cb98ddfdad3cffdd983905ee36029 100644 (file)
--- a/builtin/difftool.c
+++ b/builtin/difftool.c
@@ -112,7 +112,7 @@ static int use_wt_file(const char *workdir, const char *name,
                int fd = open(buf.buf, O_RDONLY);
 
                if (fd >= 0 &&
-                   !index_fd(&wt_oid, fd, &st, OBJ_BLOB, name, 0)) {
+                   !index_fd(&the_index, &wt_oid, fd, &st, OBJ_BLOB, name, 0)) {
                        if (is_null_oid(oid)) {
                                oidcpy(oid, &wt_oid);
                                use = 1;