ref-manual: update/fix text for SDK_VERSION

DISTRO_VERSION snapshot versions use METADATA_REVISION not DATE in
hardknott and thus the default for SDK_VERSION has been updated, so
update it here as well. Additionally, fix the text so it makes sense.

(From yocto-docs rev: 7b0c4229591d6325384800137e9242c2b030e118)

Signed-off-by: Paul Eggleton <paul.eggleton@microsoft.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 4 insertions, 4 deletions

diff --git a/documentation/ref-manual/variables.rst b/documentation/ref-manual/variables.rst
index f906d4efac..188a3ebf57 100644
--- a/documentation/ref-manual/variables.rst
+++ b/documentation/ref-manual/variables.rst
@@ -6764,16 +6764,16 @@ system and gives an overview of their function and contents.
       Specifies the name of the SDK vendor.
 
    :term:`SDK_VERSION`
-      Specifies the version of the SDK. The distribution configuration file
-      (e.g. ``/meta-poky/conf/distro/poky.conf``) defines the
+      Specifies the version of the SDK. The Poky distribution configuration file
+      (``/meta-poky/conf/distro/poky.conf``) sets the default
       ``SDK_VERSION`` as follows:
       ::
 
-         SDK_VERSION = "${@d.getVar('DISTRO_VERSION').replace('snapshot-${DATE}','snapshot')}"
+         SDK_VERSION = "${@d.getVar('DISTRO_VERSION').replace('snapshot-${METADATA_REVISION}', 'snapshot')}"
 
       For additional information, see the
       :term:`DISTRO_VERSION` and
-      :term:`DATE` variables.
+      :term:`METADATA_REVISION` variables.
 
    :term:`SDKEXTPATH`
       The default installation directory for the Extensible SDK. By