bug#15959: 24.3.50; align.el not working

[Xue Fuqiao <xfq.free@gmail.com>]

-------------------------------------
int var = 2;
int variable_is_kinda_long = 3;
int var_is_less_long = 4;
-------------------------------------

To reproduce this bug:

  emacs-24.3 -Q
  C-x b foo RET
  M-x c-mode RET
  <Yank the code above>
  C-x h
  M-x align-regexp RET = RET

The result is:

----------------------------------------
int var = 2;
int variable_is_kinda_long = 3;
int var_is_less_long = 4;
----------------------------------------

Then:

  emacs-24.3.50 -Q
  C-x b foo RET
  M-x c-mode RET
  <Yank the first code fragment>
  C-x h
  M-x align-regexp RET = RET

Surprisingly, the result is:

----------------------------------------
int var  = 2;
int variable_is_kinda_long= 3;
int var_is_less_long  = 4;
----------------------------------------

In GNU Emacs 24.3.50.1 (x86_64-unknown-linux-gnu, GTK+ Version 3.8.6)
 of 2013-11-23 on xfq-Lenovo-IdeaPad-Y530
Bzr revision: 115191 rgm@gnu.org-20131122201816-7xbductqc57awe2r

Configured using:
 `configure --enable-checking --disable-silent-rules
 --enable-gtk-deprecation-warnings'

Major mode: Lisp Interaction

Minor modes in effect:
  tooltip-mode: t
  mouse-wheel-mode: t
  tool-bar-mode: t
  menu-bar-mode: t
  file-name-shadow-mode: t
  global-font-lock-mode: t
  font-lock-mode: t
  blink-cursor-mode: t
  auto-composition-mode: t
  auto-encryption-mode: t
  auto-compression-mode: t
  line-number-mode: t
  transient-mark-mode: t

Recent input:
M-x r e - e m - b u <tab> <return>

Load-path shadows:
None found.

Features:
(shadow sort gnus-util mail-extr emacsbug message format-spec rfc822 mml
easymenu mml-sec mm-decode mm-bodies mm-encode mail-parse rfc2231
mailabbrev gmm-utils mailheader sendmail rfc2047 rfc2045 ietf-drums
mm-util mail-prsvr mail-utils time-date tooltip ediff-hook vc-hooks
lisp-float-type mwheel x-win x-dnd tool-bar dnd fontset image regexp-opt
fringe tabulated-list newcomment lisp-mode prog-mode register page
menu-bar rfn-eshadow timer select scroll-bar mouse jit-lock font-lock
syntax facemenu font-core frame cham georgian utf-8-lang misc-lang
vietnamese tibetan thai tai-viet lao korean japanese hebrew greek
romanian slovak czech european ethiopic indian cyrillic chinese
case-table epa-hook jka-cmpr-hook help simple abbrev minibuffer nadvice
loaddefs button faces cus-face macroexp files text-properties overlay
sha1 md5 base64 format env code-pages mule custom widget
hashtable-print-readable backquote make-network-process dbusbind
gfilenotify dynamic-setting system-font-setting font-render-setting
move-toolbar gtk x-toolkit x multi-tty emacs)


-- 
http://www.gnu.org/software/emacs/