[Bug] Documentation error(s) for org-babel-tangle-default-file-mode

[Aitenate <aitenate@outlook.com>]

I think there a couple of issues with the documentation for 
org-babel-tangle-default-file-mode. It seemed easiest to describe using 
a patch:

diff --git a/doc/org-manual.org b/doc/org-manual.org
index 0f6d6a067..7d703993f 100644
--- a/doc/org-manual.org
+++ b/doc/org-manual.org
@@ -19521,7 +19521,7 @@ unexpected results (=444= is the same as =o674=).
  Two other shorthands are recognized, ls-style strings like
  =rw-r--r--=, and chmod-style permissions like =g+w=.
  Note that chmod-style permissions are based on
-~org-babel-tangle-default-file-mode~, which is =#o544= by default.
+~org-babel-tangle-default-file-mode~, which is =#o644= by default.

  When =:tangle-mode= and =:shebang= are both specified, the give
  =:tangle-mode= will override the permissions from =:shebang=.  When
diff --git a/lisp/ob-tangle.el b/lisp/ob-tangle.el
index fe353ec9c..c35525162 100644
--- a/lisp/ob-tangle.el
+++ b/lisp/ob-tangle.el
@@ -159,9 +159,10 @@ result.  The default value is 
`org-remove-indentation'."
    :type 'function)

  (defcustom org-babel-tangle-default-file-mode #o644
-  "The default mode used for tangled files, as an integer.
-The default value 420 correspands to the octal #o644, which is
-read-write permissions for the user, read-only for everyone else."
+  "The default mode, an integer value, only used when the :tangle-mode
+header argument specifies chmod-style symbolic notation.  The default
+value 420 corresponds to the octal #o644, which is read-write
+permissions for the user, read-only for everyone else."
    :group 'org-babel-tangle
    :package-version '(Org . "9.6")
    :type 'integer)

If I've misread something, apologies for the noise.

Regards,

Aitenate