gallium/docs: update some distro information

Reviewed-by: Brian Paul <brianp@vmware.com>
diff --git a/src/gallium/docs/source/conf.py b/src/gallium/docs/source/conf.py
index 0846e7d..1288666 100644
--- a/src/gallium/docs/source/conf.py
+++ b/src/gallium/docs/source/conf.py
@@ -38,7 +38,7 @@
 
 # General information about the project.
 project = u'Gallium'
-copyright = u'2009, VMware, X.org, Nouveau'
+copyright = u'2009-2012, VMware, X.org, Nouveau'
 
 # The version info for the project you're documenting, acts as replacement for
 # |version| and |release|, also used in various other places throughout the