diff: document updated rename limit
diff --git a/include/git2/diff.h b/include/git2/diff.h
index a14c019..b0119b9 100644
--- a/include/git2/diff.h
+++ b/include/git2/diff.h
@@ -768,7 +768,7 @@ typedef struct {
*
* This is a little different from the `-l` option from Git because we
* will still process up to this many matches before abandoning the search.
- * Defaults to 200.
+ * Defaults to 1000.
*/
size_t rename_limit;