ref_update_reject_duplicates(): use `size_t` rather than `int`

Eliminate a theoretical risk of integer overflow if the two types have
different sizes.

Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/refs.c b/refs.c
index beb49fb2979fe7780e721237cc0e4d7c47c355ee..143936a9c3e5a5db1c41f9c8923c0f05cd99f365 100644 (file)
--- a/refs.c
+++ b/refs.c
@@ -1705,7 +1705,7 @@ int create_symref(const char *ref_target, const char *refs_heads_master,
 int ref_update_reject_duplicates(struct string_list *refnames,
                                 struct strbuf *err)
 {
-       int i, n = refnames->nr;
+       size_t i, n = refnames->nr;
 
        assert(err);