[PATCH 2 of 3 stable] commands: fix typo in --graph description

[Wagner Bruna]

# HG changeset patch
# User Wagner Bruna <wbruna at softwareexpress.com.br>
# Date 1398172341 10800
#      Ter Abr 22 10:12:21 2014 -0300
# Branch stable
# Node ID 8c161ae3f5d864de78c6b96278fabe625b6904ee
# Parent  152c646a4fb73d39b601e50496b03a00f21e5f3e
commands: fix typo in --graph description

diff --git a/mercurial/commands.py b/mercurial/commands.py
--- a/mercurial/commands.py
+++ b/mercurial/commands.py
@@ -4013,7 +4013,7 @@ def log(ui, repo, *pats, **opts):
     recent changeset at the top.
     'o' is a changeset, '@' is a working directory parent, 'x' is obsolete,
     and '+' represents a fork where the changeset from the lines below is a
-    parent of the 'o' merge on the same same line.
+    parent of the 'o' merge on the same line.
 
     .. note::
 

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