bug#11550: 23.4; cc-mode pike pmod.in auto-mode-alist regexp

[Kevin Ryde]

While nosing around auto-mode-alist I noticed the entry for pike-mode

    ("\\.\\(u?lpc\\|pike\\|pmod\\(.in\\)?\\)\\'" . pike-mode)

may have an unescaped . in the pmod.in part, presuming it's meant to
match literal .pmod.in.  I think it comes from cc-mode.el.



In GNU Emacs 23.4.1 (i486-pc-linux-gnu, GTK+ Version 2.24.10)
 of 2012-04-08 on biber, modified by Debian
configured using `configure  '--build' 'i486-linux-gnu' '--build' 
'i486-linux-gnu' '--prefix=/usr' '--sharedstatedir=/var/lib' 
'--libexecdir=/usr/lib' '--localstatedir=/var/lib' '--infodir=/usr/share/info' 
'--mandir=/usr/share/man' '--with-pop=yes' 
'--enable-locallisppath=/etc/emacs23:/etc/emacs:/usr/local/share/emacs/23.4/site-lisp:/usr/local/share/emacs/site-lisp:/usr/share/emacs/23.4/site-lisp:/usr/share/emacs/site-lisp'
 '--with-crt-dir=/usr/lib/i386-linux-gnu' '--with-x=yes' '--with-x-toolkit=gtk' 
'--with-toolkit-scroll-bars' 'build_alias=i486-linux-gnu' 'CFLAGS=-g -O2 
-fstack-protector --param=ssp-buffer-size=4 -Wformat -Wformat-security 
-Werror=format-security -Wall -DDEBIAN -O2' 'CPPFLAGS=-D_FORTIFY_SOURCE=2''