Set nightly to 2019-09

Change-Id: I5e4cd063987798e72bae4684965378ab44476d01
diff --git a/releng/toolkit/downloads/updates/nightly/latest/compositeArtifacts.xml b/releng/toolkit/downloads/updates/nightly/latest/compositeArtifacts.xml
index f9cc600..18692f4 100644
--- a/releng/toolkit/downloads/updates/nightly/latest/compositeArtifacts.xml
+++ b/releng/toolkit/downloads/updates/nightly/latest/compositeArtifacts.xml
@@ -6,6 +6,6 @@
     <property name='p2.timestamp' value='!!__TIMESTAMP__!!'/>
   </properties>
   <children size='1'>
-	<child location="https://download.eclipse.org/gendoc/updates/nightly/latest/2018-09/" />
+	<child location="https://download.eclipse.org/gendoc/updates/nightly/latest/2019-09/" />
   </children>
 </repository>
\ No newline at end of file
diff --git a/releng/toolkit/downloads/updates/nightly/latest/compositeContent.xml b/releng/toolkit/downloads/updates/nightly/latest/compositeContent.xml
index 006199a..031ba6b 100644
--- a/releng/toolkit/downloads/updates/nightly/latest/compositeContent.xml
+++ b/releng/toolkit/downloads/updates/nightly/latest/compositeContent.xml
@@ -6,6 +6,6 @@
 		<property name="p2.timestamp" value="!!__TIMESTAMP__!!" />
 	</properties>
 	<children size="1">
-		<child location="https://download.eclipse.org/gendoc/updates/nightly/latest/2018-09/" />
+		<child location="https://download.eclipse.org/gendoc/updates/nightly/latest/2019-09/" />
 	</children>
 </repository>
\ No newline at end of file