test: cast to a char the zstream test
diff --git a/tests/core/zstream.c b/tests/core/zstream.c
index 398d90a..bcbb45f 100644
--- a/tests/core/zstream.c
+++ b/tests/core/zstream.c
@@ -61,7 +61,7 @@ void test_core_zstream__basic(void)
void test_core_zstream__fails_on_trailing_garbage(void)
{
git_buf deflated = GIT_BUF_INIT, inflated = GIT_BUF_INIT;
- size_t i = 0;
+ char i = 0;
/* compress a simple string */
git_zstream_deflatebuf(&deflated, "foobar!!", 8);