[PATCH] color: update docstring for debug option

[Jordi Gutiérrez Hermoso]

# HG changeset patch
# User Jordi Gutiérrez Hermoso <jordigh at octave.org>
# Date 1408916427 14400
#      Sun Aug 24 17:40:27 2014 -0400
# Node ID 9f9ba0dcf5fdcc9978db7fdbd909916f0c35e4a6
# Parent  7b18366b12d6081bc78bb2beb98bdcb71018ef69
color: update docstring for debug option

964dd1c491ca updated the format for the --color=debug option. This
updates the documentation to match this new format.

diff --git a/hgext/color.py b/hgext/color.py
--- a/hgext/color.py
+++ b/hgext/color.py
@@ -28,11 +28,10 @@ effects. This includes the special "none
 other effects.
 
 Labels are normally invisible. In order to see these labels and their
-position in the text, use the global --color=debug option. In case of
-multiple labels for the same text, the labels will be enclosed by
-square brackets, e.g.
+position in the text, use the global --color=debug option. The same
+anchor text may be associated to multiple labels, e.g.
 
-  [log.changeset changeset.secret](changeset:   22611:6f0a53c8f587)
+  [log.changeset changeset.secret|changeset:   22611:6f0a53c8f587]
 
 The following are the default effects for some default labels. Default
 effects may be overridden from your configuration file::