reflog-walk: always make HEAD@{0} show indexed selectors

diff --git a/RelNotes b/RelNotes
index 6be0f7886fb537401471e9461aa5114fc75232bd..81eb3c2271e534c04ec65227b45da12ab6eccf77 120000 (symlink)
--- a/RelNotes
+++ b/RelNotes
@@ -1 +1 @@
-Documentation/RelNotes-1.5.5.3.txt
\ No newline at end of file
+Documentation/RelNotes/1.7.7.7.txt
\ No newline at end of file