Committed as obvious.
Thomas, please fix it if this isn't what you meant to say.
commit 5264b357a424a38ccdcd3af01d67902109218aa8
Author: Jonathan Wakely
Date: Tue Apr 14 11:09:43 2020 +0100
Fix inverted option for disabling new feature (PR 94581)
diff --git a/htdocs/gcc-10/changes.html b/htdocs/gcc-10/changes.html
index 61c767f4..ca49e626 100644
--- a/htdocs/gcc-10/changes.html
+++ b/htdocs/gcc-10/changes.html
@@ -444,7 +444,7 @@ a work-in-progress.
uses inline packing for arguments instead of calling a library
routine. If the source contains a large number of arguments that
need to be repacked, code size or time for compilation can become
-excessive. If that is the case, -finline-arg-packing
+excessive. If that is the case, -fno-inline-arg-packing
can be used to disable inline argument packing.