worktree: use `git__free` instead of `free`
diff --git a/src/worktree.c b/src/worktree.c
index f224b23..ede155b 100644
--- a/src/worktree.c
+++ b/src/worktree.c
@@ -212,7 +212,7 @@
 		goto out;
 
 out:
-	free(name);
+	git__free(name);
 	git_buf_free(&parent);
 
 	return error;