bug#67820: 29.1; Code example in "fwd-para while" has unmatched ending parentheses

[Xiyue Deng]

The code example in section "fwd-para while" has unmatched ending
parentheses[1].  Admittedly this code snippet was copied literally from
the previous longer code sample where the 2 extra ending parentheses
were to match the `if' and `while', but it would make more sense to drop
them in this example.  Will add a patch next.

[1] 
https://git.savannah.gnu.org/cgit/emacs.git/tree/doc/lispintro/emacs-lisp-intro.texi#n13248


In GNU Emacs 29.1 (build 1, x86_64-pc-linux-gnu, GTK+ Version 3.24.37,
 cairo version 1.16.0) of 2023-09-19, modified by Debian built on
 debian-hx90
System Description: Debian GNU/Linux 12 (bookworm)

Configured using:
 'configure --build x86_64-linux-gnu --prefix=/usr
 --sharedstatedir=/var/lib --libexecdir=/usr/libexec
 --localstatedir=/var/lib --infodir=/usr/share/info
 --mandir=/usr/share/man --with-libsystemd --with-pop=yes
 
--enable-locallisppath=/etc/emacs:/usr/local/share/emacs/29.1/site-lisp:/usr/local/share/emacs/site-lisp:/usr/share/emacs/29.1/site-lisp:/usr/share/emacs/site-lisp
 --with-sound=alsa --without-gconf --with-mailutils
 --with-native-compilation --build x86_64-linux-gnu --prefix=/usr
 --sharedstatedir=/var/lib --libexecdir=/usr/libexec
 --localstatedir=/var/lib --infodir=/usr/share/info
 --mandir=/usr/share/man --with-libsystemd --with-pop=yes
 
--enable-locallisppath=/etc/emacs:/usr/local/share/emacs/29.1/site-lisp:/usr/local/share/emacs/site-lisp:/usr/share/emacs/29.1/site-lisp:/usr/share/emacs/site-lisp
 --with-sound=alsa --without-gconf --with-mailutils
 --with-native-compilation --with-cairo --with-x=yes
 --with-x-toolkit=gtk3 --with-toolkit-scroll-bars 'CFLAGS=-g -O2
 -ffile-prefix-map=/build/emacs-bYKTEl/emacs-29.1+1=. -fstack-protector-strong
 -Wformat -Werror=format-security -Wall' 'CPPFLAGS=-Wdate-time
 -D_FORTIFY_SOURCE=2' LDFLAGS=-Wl,-z,relro'

Configured features:
ACL CAIRO DBUS FREETYPE GIF GLIB GMP GNUTLS GPM GSETTINGS HARFBUZZ JPEG
JSON LCMS2 LIBOTF LIBSELINUX LIBSYSTEMD LIBXML2 M17N_FLT MODULES
NATIVE_COMP NOTIFY INOTIFY PDUMPER PNG RSVG SECCOMP SOUND SQLITE3
THREADS TIFF TOOLKIT_SCROLL_BARS TREE_SITTER WEBP X11 XDBE XIM XINPUT2
XPM GTK3 ZLIB

Important settings:
  value of $LANG: en_US.UTF-8
  locale-coding-system: utf-8-unix

Major mode: Texinfo/P

Minor modes in effect:
  TeX-PDF-mode: t
  global-git-commit-mode: t
  magit-auto-revert-mode: t
  shell-dirtrack-mode: t
  windmove-mode: t
  flyspell-mode: t
  rcirc-track-minor-mode: t
  server-mode: t
  bug-reference-prog-mode: t
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  company-mode: t
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  fido-mode: t
  override-global-mode: t
  global-display-line-numbers-mode: t
  display-line-numbers-mode: t
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  tooltip-mode: t
  global-eldoc-mode: t
  show-paren-mode: t
  electric-indent-mode: t
  mouse-wheel-mode: t
  tool-bar-mode: t
  tab-bar-mode: t
  file-name-shadow-mode: t
  global-font-lock-mode: t
  font-lock-mode: t
  blink-cursor-mode: t
  column-number-mode: t
  line-number-mode: t
  transient-mark-mode: t
  auto-composition-mode: t
  auto-encryption-mode: t
  auto-compression-mode: t

Load-path shadows:
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/usr/share/emacs/site-lisp/elpa/devscripts-40/pbuilder-mode hides 
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/usr/share/emacs/site-lisp/elpa/dockerfile-mode-1.7/dockerfile-mode hides 
/usr/share/emacs/site-lisp/elpa-src/dockerfile-mode-1.7/dockerfile-mode
/usr/share/emacs/site-lisp/elpa/dockerfile-mode-1.7/dockerfile-mode-autoloads 
hides 
/usr/share/emacs/site-lisp/elpa-src/dockerfile-mode-1.7/dockerfile-mode-autoloads
/usr/share/emacs/site-lisp/elpa/dockerfile-mode-1.7/dockerfile-mode-pkg hides 
/usr/share/emacs/site-lisp/elpa-src/dockerfile-mode-1.7/dockerfile-mode-pkg
/usr/share/emacs/site-lisp/elpa/dpkg-dev-el-37.10/debian-bts-control hides 
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/usr/share/emacs/site-lisp/elpa/dpkg-dev-el-37.10/debian-changelog-mode hides 
/usr/share/emacs/site-lisp/elpa-src/dpkg-dev-el-37.10/debian-changelog-mode
/usr/share/emacs/site-lisp/elpa/dpkg-dev-el-37.10/dpkg-dev-el-autoloads hides 
/usr/share/emacs/site-lisp/elpa-src/dpkg-dev-el-37.10/dpkg-dev-el-autoloads
/usr/share/emacs/site-lisp/elpa/dpkg-dev-el-37.10/dpkg-dev-el-pkg hides 
/usr/share/emacs/site-lisp/elpa-src/dpkg-dev-el-37.10/dpkg-dev-el-pkg
/usr/share/emacs/site-lisp/elpa/dpkg-dev-el-37.10/dpkg-dev-el hides 
/usr/share/emacs/site-lisp/elpa-src/dpkg-dev-el-37.10/dpkg-dev-el
/usr/share/emacs/site-lisp/elpa/dpkg-dev-el-37.10/debian-control-mode hides 
/usr/share/emacs/site-lisp/elpa-src/dpkg-dev-el-37.10/debian-control-mode
/usr/share/emacs/site-lisp/elpa/dpkg-dev-el-37.10/debian-copyright hides 
/usr/share/emacs/site-lisp/elpa-src/dpkg-dev-el-37.10/debian-copyright
/usr/share/emacs/site-lisp/elpa/dpkg-dev-el-37.10/readme-debian hides 
/usr/share/emacs/site-lisp/elpa-src/dpkg-dev-el-37.10/readme-debian
/usr/share/emacs/site-lisp/elpa/lintian-0.1/lintian-pkg hides 
/usr/share/emacs/site-lisp/elpa-src/lintian-0.1/lintian-pkg
/usr/share/emacs/site-lisp/elpa/lintian-0.1/lintian-autoloads hides 
/usr/share/emacs/site-lisp/elpa-src/lintian-0.1/lintian-autoloads
/usr/share/emacs/site-lisp/elpa/lintian-0.1/lintian hides 
/usr/share/emacs/site-lisp/elpa-src/lintian-0.1/lintian
/usr/share/emacs/site-lisp/elpa/po-mode-0.21/po-mode-pkg hides 
/usr/share/emacs/site-lisp/elpa-src/po-mode-0.21/po-mode-pkg
/usr/share/emacs/site-lisp/elpa/po-mode-0.21/po-mode-autoloads hides 
/usr/share/emacs/site-lisp/elpa-src/po-mode-0.21/po-mode-autoloads
/usr/share/emacs/site-lisp/elpa/po-mode-0.21/po-mode hides 
/usr/share/emacs/site-lisp/elpa-src/po-mode-0.21/po-mode
/usr/share/emacs/site-lisp/elpa/py-isort-2016.1/py-isort hides 
/usr/share/emacs/site-lisp/elpa-src/py-isort-2016.1/py-isort
/usr/share/emacs/site-lisp/elpa/py-isort-2016.1/py-isort-autoloads hides 
/usr/share/emacs/site-lisp/elpa-src/py-isort-2016.1/py-isort-autoloads
/usr/share/emacs/site-lisp/elpa/py-isort-2016.1/py-isort-pkg hides 
/usr/share/emacs/site-lisp/elpa-src/py-isort-2016.1/py-isort-pkg
/home/xiyueden/.config/emacs/elpa/transient-0.5.2/transient hides 
/usr/share/emacs/29.1/lisp/transient

Features:
(mailalias cl-print shadow git-rebase ediff ediff-merg ediff-mult
ediff-wind ediff-diff ediff-help ediff-init ediff-util novice emacsbug
vterm magit-bookmark bookmark tramp tramp-loaddefs trampver
tramp-integration files-x tramp-compat term ehelp vterm-module rect
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url-auth url-queue url-cache magit-extras face-remap magit-submodule
magit-obsolete magit-blame magit-stash magit-reflog magit-bisect
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Memory information:
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 (symbols 48 36458 63)
 (strings 32 153206 27400)
 (string-bytes 1 4660985)
 (vectors 16 93474)
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