documentation: Updated release date scheme to use variable.

The release date is moving on Pyro.  Added a new variable that I
set to "May 2018" for the release date.  This way if it pushes past
May, I just need to update poky.ent.

(From yocto-docs rev: 928c6a2bf1c31e3819ec33e09bec6c69e2ccea76)

Signed-off-by: Scott Rifenbark <srifenbark@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 1 insertions, 1 deletions

diff --git a/documentation/sdk-manual/sdk-manual.xml b/documentation/sdk-manual/sdk-manual.xml
index 20df2be202..da41cf975e 100644
--- a/documentation/sdk-manual/sdk-manual.xml
+++ b/documentation/sdk-manual/sdk-manual.xml
@@ -63,7 +63,7 @@
             </revision>
             <revision>
                 <revnumber>2.3.4</revnumber>
-                <date>April 2018</date>
+                <date>&REL_MONTH_YEAR;</date>
                 <revremark>Released with the Yocto Project 2.3.4 Release.</revremark>
             </revision>
        </revhistory>