worktree: disallow adding same path multiple times

diff --git a/reflog-walk.h b/reflog-walk.h
index 7553c448fe5bf8b432d7fdb2ef5cba967bb985cd..cb3e73755d445b866ad51246dc8b1ea3ab6f1639 100644 (file)
--- a/reflog-walk.h
+++ b/reflog-walk.h
@@ -3,6 +3,7 @@
 
 #include "cache.h"
 
+struct commit;
 struct reflog_walk_info;
 
 extern void init_reflog_walk(struct reflog_walk_info **info);