[PATCH 1 of 7] graft: use double quotes for arguments

[timeless]

# HG changeset patch
# User timeless <timeless at mozdev.org>
# Date 1452591024 0
#      Tue Jan 12 09:30:24 2016 +0000
# Node ID e98a5f3fac5f0fd72fbf38bc410a55a97790fa31
# Parent  ff0d3b6b287f89594bd8d0308fe2810d2a18ea01
graft: use double quotes for arguments

diff --git a/mercurial/commands.py b/mercurial/commands.py
--- a/mercurial/commands.py
+++ b/mercurial/commands.py
@@ -4026,7 +4026,7 @@
 
       - show revisions sorted by date::
 
-          hg log -r 'sort(all(), date)'
+          hg log -r "sort(all(), date)"
 
     See :hg:`help revisions` and :hg:`help revsets` for more about
     specifying revisions.