git-remote-testpy: hash bytes explicitly

diff --git a/RelNotes b/RelNotes
index 8abe4c292b53249d22252f54c877a798ff604327..bdce3136ea5164d82f0d25d0a7a8b50181f572f7 120000 (symlink)
--- a/RelNotes
+++ b/RelNotes
@@ -1 +1 @@
-Documentation/RelNotes-1.5.1.5.txt
\ No newline at end of file
+Documentation/RelNotes/1.8.2.txt
\ No newline at end of file