[3.0] 66ec78d RHEL6 is not RH6.

[Lasse Karstensen]

commit 66ec78d6e8fbcf431908d05280821c06f0bbfead
Author: Lasse Karstensen <lasse at varnish-software.com>
Date:   Thu Nov 22 15:08:36 2012 +0100

    RHEL6 is not RH6.

diff --git a/doc/sphinx/tutorial/platformnotes.rst b/doc/sphinx/tutorial/platformnotes.rst
index 4f76f9e..3ad486c 100644
--- a/doc/sphinx/tutorial/platformnotes.rst
+++ b/doc/sphinx/tutorial/platformnotes.rst
@@ -2,8 +2,8 @@
 Platform specific notes
 ------------------------
 
-Transparent hugepages on Redhat Linux 6
-~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+Transparent hugepages on Redhat Enterprise Linux 6
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 
 On RHEL6 Transparent Hugepage kernel support is enabled by default.
 This is known to cause sporadic crashes of Varnish.