river-layout: fix version of layout_name events

 protocol/river-status-unstable-v1.xml | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/protocol/river-status-unstable-v1.xml b/protocol/river-status-unstable-v1.xml
index f6bc091..be5a302 100644
--- a/protocol/river-status-unstable-v1.xml
+++ b/protocol/river-status-unstable-v1.xml
@@ -84,7 +84,7 @@
       <arg name="tags" type="uint" summary="32-bit bitfield"/>
     </event>
 
-    <event name="layout_name" since="3">
+    <event name="layout_name" since="4">
       <description summary="name of the layout">
         Sent once on binding the interface should a layout name exist and again
         whenever the name changes.
@@ -92,7 +92,7 @@
       <arg name="name" type="string" summary="layout name"/>
     </event>
 
-    <event name="layout_name_clear" since="3">
+    <event name="layout_name_clear" since="4">
       <description summary="name of the layout">
         Sent when the current layout name has been removed without a new one
         being set, for example whent the active layout generator disconnects.