[Releng] Update build.xml to Buckminster 4.5
diff --git a/plugins/org.eclipse.emf.cdo.releng/build.xml b/plugins/org.eclipse.emf.cdo.releng/build.xml
index de9646b..7ac3d5e 100644
--- a/plugins/org.eclipse.emf.cdo.releng/build.xml
+++ b/plugins/org.eclipse.emf.cdo.releng/build.xml
@@ -580,7 +580,7 @@
             <arg value="-r" />
             <arg value="http://download.eclipse.org/tools/buckminster/headless-4.5" />
             <arg value="-r" />
-            <arg value="http://download.eclipse.org/releases/neon" />
+            <arg value="http://download.eclipse.org/releases/mars" />
             <arg value="-r" />
             <arg value="http://download.eclipse.org/oomph/updates/latest" />
             <arg value="-r" />