sregex doc fix

[Stuart D. Herring]

A trivial patch that properly escapes the \= in `sregexq''s docstring (as
it is meaningful both in regexes and in docstrings):

Index: sregex.el
===================================================================
RCS file: /sources/emacs/emacs/lisp/emacs-lisp/sregex.el,v
retrieving revision 1.11
diff -c -r1.11 sregex.el
*** sregex.el   21 Jan 2007 02:44:24 -0000      1.11
--- sregex.el   28 Feb 2007 23:03:02 -0000
***************
*** 425,431 ****
    Stands for \"\\\\'\", matching the empty string at the end of text.

  - the symbol `point'
!   Stands for \"\\\\=\", matching the empty string at point.

  - the symbol `word-boundary'
    Stands for \"\\\\b\", matching the empty string at the beginning or
--- 425,431 ----
    Stands for \"\\\\'\", matching the empty string at the end of text.

  - the symbol `point'
!   Stands for \"\\\\=\\=\", matching the empty string at point.

  - the symbol `word-boundary'
    Stands for \"\\\\b\", matching the empty string at the beginning or

Davis

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