Fix typo in javadoc

See gh-1080

spring-tx/src/main/java/org/springframework/jca/endpoint/GenericMessageEndpointManager.java

@@ -214,7 +214,7 @@ public class GenericMessageEndpointManager implements SmartLifecycle, Initializi
 	 * Set whether to auto-start the endpoint activation after this endpoint
 	 * manager has been initialized and the context has been refreshed.
 	 * <p>Default is "true". Turn this flag off to defer the endpoint
-	 * activation until an explicit {#start()} call.
+	 * activation until an explicit {@link #start()} call.
 	 */
 	public void setAutoStartup(boolean autoStartup) {
 		this.autoStartup = autoStartup;