builtin/upload-archive.c: use error_errno()

diff --git a/argv-array.c b/argv-array.c
index eaed47712b44ed1a5f9e5d35d356d0de4a5a4d54..5d370fa3366163f8c0c81ca0b6b1a64a7030c696 100644 (file)
--- a/argv-array.c
+++ b/argv-array.c
@@ -74,3 +74,14 @@ void argv_array_clear(struct argv_array *array)
        }
        argv_array_init(array);
 }
+
+const char **argv_array_detach(struct argv_array *array)
+{
+       if (array->argv == empty_argv)
+               return xcalloc(1, sizeof(const char *));
+       else {
+               const char **ret = array->argv;
+               argv_array_init(array);
+               return ret;
+       }
+}