winhttp: use an unsigned iterator
diff --git a/src/transports/winhttp.c b/src/transports/winhttp.c
index 3750f6e..ded0416 100644
--- a/src/transports/winhttp.c
+++ b/src/transports/winhttp.c
@@ -283,7 +283,7 @@ static int winhttp_stream_connect(winhttp_stream *s)
unsigned long disable_redirects = WINHTTP_DISABLE_REDIRECTS;
int default_timeout = TIMEOUT_INFINITE;
int default_connect_timeout = DEFAULT_CONNECT_TIMEOUT;
- int i;
+ size_t i;
/* Prepare URL */
git_buf_printf(&buf, "%s%s", t->connection_data.path, s->service_url);