submodule-config: combine early return code into one goto

diff --git a/RelNotes b/RelNotes
index 65d6f36d3939df320cd58b13cebcd63f2edc0aa9..58fee1e34792b2ea17b214200742c5776804b1d6 120000 (symlink)
--- a/RelNotes
+++ b/RelNotes
@@ -1 +1 @@
-Documentation/RelNotes/2.7.3.txt
\ No newline at end of file
+Documentation/RelNotes/2.8.4.txt
\ No newline at end of file