[PATCH] Use three hyphens for "emdash".

[Thien-Thi Nguyen]

Here is a suitable ChangeLog entry:

2010-02-17  Thien-Thi Nguyen  <t...@gnuvola.org>  (tiny change)

        Use three hyphens for "emdash".
        * doc/standards.texi (Change Log Concepts):
        Use three hyphens, not two, to effect "--" output.

diff --git a/doc/standards.texi b/doc/standards.texi
index 7960880..26e30a3 100644
*** a/doc/standards.texi
--- b/doc/standards.texi
***************
*** 3531,3537 ****
  
  The change log file is normally called @file{ChangeLog} and covers an
  entire directory.  Each directory can have its own change log, or a
! directory can use the change log of its parent directory--it's up to
  you.
  
  Another alternative is to record change log information with a version
--- 3531,3537 ----
  
  The change log file is normally called @file{ChangeLog} and covers an
  entire directory.  Each directory can have its own change log, or a
! directory can use the change log of its parent directory---it's up to
  you.
  
  Another alternative is to record change log information with a version