bug#49690: 28.0.50; ERC makes a button of `let' but not `let*'

[Emanuel Berg]

ERC makes a button of `let' (and fontifies accordingly to
(erc-button erc-input-face)) but not of `let*'
(erc-input-face).

Maybe has something to do with asterisk? :)


In GNU Emacs 28.0.50 (build 1, x86_64-pc-linux-gnu, GTK+ Version 3.24.5, cairo 
version 1.16.0)
 of 2020-10-23 built on ebih
Repository revision: 558065531beaaae78810508f267415c6953e8e47
Repository branch: master
System Description: Debian GNU/Linux 11 (bullseye)

Configured features:
XPM JPEG TIFF GIF PNG CAIRO SOUND DBUS GSETTINGS GLIB NOTIFY
INOTIFY LIBSELINUX GNUTLS FREETYPE HARFBUZZ ZLIB
TOOLKIT_SCROLL_BARS GTK3 X11 XDBE XIM MODULES THREADS PDUMPER

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

Major mode: Group

Minor modes in effect:
  erc-list-mode: t
  erc-menu-mode: t
  erc-networks-mode: t
  erc-track-mode: t
  erc-track-minor-mode: t
  erc-netsplit-mode: t
  cursor-sensor-mode: t
  show-paren-mode: t
  erc-match-mode: t
  erc-button-mode: t
  erc-ring-mode: t
  erc-pcomplete-mode: t
  erc-autojoin-mode: t
  erc-fill-mode: t
  erc-stamp-mode: t
  erc-irccontrols-mode: t
  erc-noncommands-mode: t
  erc-move-to-prompt-mode: t
  erc-readonly-mode: t
  erc-scrolltobottom-mode: t
  gnus-undo-mode: t
  shell-dirtrack-mode: t
  global-eldoc-mode: t
  electric-indent-mode: t
  mouse-wheel-mode: t
  tool-bar-mode: t
  global-font-lock-mode: t
  font-lock-mode: t
  auto-composition-mode: t
  auto-compression-mode: t
  buffer-read-only: t
  transient-mark-mode: t

Load-path shadows:
/home/incal/quicklisp/dists/quicklisp/software/slime-v2.26.1/slime hides 
/usr/share/emacs/site-lisp/elpa-src/slime-2.26.1/slime
/home/incal/quicklisp/dists/quicklisp/software/slime-v2.26.1/slime-autoloads 
hides /usr/share/emacs/site-lisp/elpa-src/slime-2.26.1/slime-autoloads
/home/incal/quicklisp/dists/quicklisp/software/slime-v2.26.1/slime-tests hides 
/usr/share/emacs/site-lisp/elpa-src/slime-2.26.1/slime-tests
~/.emacs.d/emacs-init/isbn-verify hides 
/home/incal/.emacs.d/elpa/isbn-verify-2.0.0/isbn-verify
~/.emacs.d/emacs-init/signal hides 
/home/incal/.emacs.d/elpa/signal-20160816.1438/signal
~/.emacs.d/lisp/abbrev hides /usr/local/share/emacs/28.0.50/lisp/abbrev
~/.emacs.d/emacs-init/misc hides /usr/local/share/emacs/28.0.50/lisp/misc

Features:
(shadow emacsbug w3m-save erc-list erc-menu erc-networks
erc-track erc-netsplit eieio-opt speedbar ezimage dframe ...)

Memory information:
((conses 16 503773 102880)
 (symbols 48 116129 5)
 (strings 32 213243 14204)
 (string-bytes 1 7404404)
 (vectors 16 54254)
 (vector-slots 8 1383807 214374)
 (floats 8 511 680)
 (intervals 56 4498 1632)
 (buffers 992 61))

-- 
underground experts united
https://dataswamp.org/~incal