The following two errors are in the Emacs info manual for Emacs 28.1 (C-h r):
1. In "(emacs) Gnus Group Buffer", the description for the key
‘u’ reads:
Toggle the subscription status of the group
(‘gnus-group-toggle-subscription’) on the current line.
Invoking this on a killed or zombie group turns it into
an unsubscribed group.
But C-h c for the key ‘u’ in the GNUS *Group* buffer reports:
u runs the command gnus-group-toggle-subscription-at-point
Likewise, C-h k for the key ‘u’ reports:
u runs the command gnus-group-toggle-subscription-at-point
(found in gnus-group-mode-map), which is an interactive
native compiled Lisp function in ‘gnus-group.el’.
So, the trailing text "-at-point" is missing from the function
name bound to the ‘u’ key in the Emacs info manual and needs
to be added to the function name in the description in the
info manual.
(Note: Capital ‘U’ in the GNUS *Group* buffer is mapped
to ‘gnus-group-toggle-subscription’.)
2. In "(emacs) Gnus Summary Buffer", the key sequence for
the command ‘gnus-summary-search-article-forward’ is
incorrect. The info manual reads:
‘M-s REGEXP <RET>’
Search forward for articles containing a match for
REGEXP (‘gnus-summary-search-article-forward’).
But C-h c M-s M-s reports:
M-s M-s runs the command gnus-summary-search-article-forward
Likewise, the Gnus menu for the GNUS *Summary* buffer
lists:
Search articles forward... M-s M-s
So, an additional M-s is needed in the Emacs info manual
for the key sequence for searching forward in articles:
‘M-s M-s REGEXP <RET>’
(End of error report.)