[jhbuild] Documentation for configuration option dvcs_mirror_dir

[Craig Keogh <cskeogh src gnome org>]

commit ba408905c2a7803c134510d08690ac3f45ca02b2
Author: Dirk Wallenstein <halsmit t-online de>
Date:   Mon Dec 13 19:59:41 2010 +0100

    Documentation for configuration option dvcs_mirror_dir
    
    https://bugzilla.gnome.org/show_bug.cgi?id=637119

 doc/C/jhbuild.xml |   14 ++++++++++++++
 1 files changed, 14 insertions(+), 0 deletions(-)
---
diff --git a/doc/C/jhbuild.xml b/doc/C/jhbuild.xml
index 19d3e17..c16f1a2 100644
--- a/doc/C/jhbuild.xml
+++ b/doc/C/jhbuild.xml
@@ -1684,6 +1684,20 @@ libgnomecanvas is missing branch definition for gnome-2-20
 	  </listitem>
 	</varlistentry>
 	<varlistentry>
+	  <term id="cfg-dvcs-mirror-dir"><varname>dvcs_mirror_dir</varname></term>
+	  <listitem>
+	    <simpara>A string specifying a local mirror directory. JHBuild
+	    will create local mirrors of repositories at the
+	    specified directory. The mirrors can be shared by multiple
+	    repository groups, saving space and time
+	    because hard-links will be used for local clones. The commands
+	    <command>update</command> and <command>updateone</command> will
+	    create the mirrors and fetch new commits from the online
+	    repositories. This option is only supported by Git and Bazaar
+	    repositories.</simpara>
+	  </listitem>
+	</varlistentry>
+	<varlistentry>
 	  <term id="cfg-installprog"><varname>installprog</varname></term>
 	  <listitem>
 	    <simpara>A string specifying a program to use as