Merge from origin/emacs-28

f9ee83bfb9 do_switch_frame: before leaving mini-window, check other (...
908e2e09d0 Fix commands used to produce on-line HTML docs
fff770fb97 Fix a bad cross-reference in elisp.pdf
ebea3415b0 Fix documentation of 'string-pad'

diff --cc admin/admin.el
Simple merge

diff --cc doc/lispref/control.texi
Simple merge

diff --cc doc/lispref/strings.texi
Simple merge

diff --cc src/frame.c
Simple merge