Added pattern for DateTime channel types (#11681)

Signed-off-by: Christoph Weitkamp <github@christophweitkamp.de>

bundles/org.openhab.binding.logreader/src/main/resources/OH-INF/thing/channels.xml

@@ -8,62 +8,60 @@
 		<item-type>String</item-type>
 		<label>Last Error Event</label>
 		<description>Displays contents of last [ERROR] event</description>
-		<state readOnly="true"></state>
+		<state readOnly="true"/>
 	</channel-type>
 	<channel-type id="lastWarningEvent">
 		<item-type>String</item-type>
 		<label>Last Warning Event</label>
 		<description>Displays contents of last [WARN] event</description>
-		<state readOnly="true"></state>
+		<state readOnly="true"/>
 	</channel-type>
 	<channel-type id="lastCustomEvent" advanced="true">
 		<item-type>String</item-type>
 		<label>Last Custom Event</label>
 		<description>Displays contents of last custom event</description>
-		<state readOnly="true"></state>
+		<state readOnly="true"/>
 	</channel-type>
 	<channel-type id="warningEvents">
 		<item-type>Number</item-type>
 		<label>Warning Events Matched</label>
 		<description>Displays number of [WARN] lines matched to search pattern</description>
+		<state readOnly="true"/>
 	</channel-type>
 	<channel-type id="errorEvents">
 		<item-type>Number</item-type>
 		<label>Error Events Matched</label>
 		<description>Displays number of [ERROR] lines matched to search pattern</description>
+		<state readOnly="true"/>
 	</channel-type>
 	<channel-type id="customEvents" advanced="true">
 		<item-type>Number</item-type>
 		<label>Custom Events Matched</label>
 		<description>Displays number of custom lines matched to search pattern</description>
+		<state readOnly="true"/>
 	</channel-type>
 	<channel-type id="logRotated" advanced="true">
 		<item-type>DateTime</item-type>
 		<label>Log Rotated</label>
 		<description>Last time when log rotated recognized</description>
-		<state readOnly="true"></state>
+		<category>Time</category>
+		<state readOnly="true" pattern="%1$tY-%1$tm-%1$td %1$tH:%1$tM:%1$tS"/>
 	</channel-type>
 
 	<channel-type id="newErrorEvent">
 		<kind>trigger</kind>
 		<label>New Error Event</label>
 		<description>Fires when a new [ERROR] appears in the log</description>
-		<event>
-		</event>
 	</channel-type>
 	<channel-type id="newWarningEvent">
 		<kind>trigger</kind>
 		<label>New Warning Event</label>
 		<description>Fires when a new [WARN] appears in the log</description>
-		<event>
-		</event>
 	</channel-type>
 	<channel-type id="newCustomEvent" advanced="true">
 		<kind>trigger</kind>
 		<label>New Custom Event</label>
 		<description>Fires when a new [CUSTOM] appears in the log</description>
-		<event>
-		</event>
 	</channel-type>
 
 </thing:thing-descriptions>