More updates to Programs chapter of Emacs manual.
* doc/emacs/programs.texi (Man Page): Clarify how to use Man-switches. Don't bother documenting Man-fontify-manpage-flag. (Lisp Doc): Add xref to Name Help node. (Hideshow): Add cindex. Mention role of ellipses, and default value of hs-isearch-open. Don't bother documenting hs-special-modes-alist. (Symbol Completion): Add kindex for C-M-i. Don't recommend changing the window manager binding of M-TAB.
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