refs: use `size_t` indexes when iterating over ref transaction updates

diff --git a/refs.c b/refs.c
index 8494b1f20d5a160bfe0749517898e76259bafc71..71139ba74e6d56d014a0f0cc85591c96da3bf7de 100644 (file)
--- a/refs.c
+++ b/refs.c
@@ -848,7 +848,7 @@ struct ref_transaction *ref_transaction_begin(struct strbuf *err)
 
 void ref_transaction_free(struct ref_transaction *transaction)
 {
-       int i;
+       size_t i;
 
        if (!transaction)
                return;