Re: No @subtitlefont in texinfo 5

[Alan Mackenzie]

Hi, Texinfo.

I've just had the following bug report on address@hidden from Jerry
James:

On Sat, Nov 23, 2013 at 02:33:54PM -0700, Jerry James wrote:
> Hi Alan,

> Texinfo 5 doesn't understand @subtitlefont, which appears in cc-mode.texi:

> cc-mode.texi:196: unknown command `subtitlefont'
> cc-mode.texi:196: misplaced {
> cc-mode.texi:196: misplaced }
> cc-mode.texi:196: warning: @center missing argument

> Could you look into a replacement for it?  Thank you and regards,
> -- 
> Jerry James
> http://www.jamezone.org/

The command `subtitlefont' existed in Texinfo 4.x, but was not documented
in the Texinfo manual, for some reason.  It exists in
texinfo-5.0/doc/texinfo.tex at L3290.

Would it be possible to amend Texinfo 5 to handle this command fully?

For reference, here is the section from cc-mode.texi that contains the
command:

#########################################################################

@comment !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
@comment TeX title page
@comment !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

@titlepage
@sp 10

@center @titlefont{CC Mode 5.32}
@sp 2
@center @subtitlefont{A GNU Emacs mode for editing C and C-like languages}
@sp 2
@center Barry A. Warsaw, Martin Stjernholm, Alan Mackenzie

@page
@vskip 0pt plus 1filll
@insertcopying

This manual was generated from $Revision: 5.266 $ of $RCSfile: cc-mode.texi,v 
$, which can be
downloaded from
@url{http://cvs.sf.net/viewcvs.py/cc-mode/cc-mode/cc-mode.texi}.
@end titlepage

#########################################################################

Thanks!

-- 
Alan Mackenzie (Nuremberg, Germany).