--std-out=discard for embedded host controller doesn't work

[disconnected /] embed-host-controller --std-out=discard
09:22:06,627 INFO  [org.jboss.modules] (AeshProcess: 1) JBoss Modules version 1.4.3.Final
09:22:06,733 INFO  [org.jboss.msc] (AeshProcess: 1) JBoss MSC version 1.2.6.Final
09:22:06,758 INFO  [org.jboss.as] (MSC service thread 1-7) WFLYSRV0049: EAP 7.0.0.Alpha1 (WildFly Core 2.0.0.Beta4) starting
09:22:07,769 INFO  [org.jboss.as.controller.management-deprecated] (Controller Boot Thread) WFLYCTL0028: Attribute 'enabled' in the resource at address '/profile=default/subsystem=datasources/data-source=ExampleDS' is deprecated, and may be removed in future version. See the attribute description in the output of the read-resource-description operation to learn more about the deprecation.
09:22:07,799 INFO  [org.jboss.as.controller.management-deprecated] (Controller Boot Thread) WFLYCTL0028: Attribute 'enabled' in the resource at address '/profile=ha/subsystem=datasources/data-source=ExampleDS' is deprecated, and may be removed in future version. See the attribute description in the output of the read-resource-description operation to learn more about the deprecation.
09:22:07,824 INFO  [org.jboss.as.controller.management-deprecated] (Controller Boot Thread) WFLYCTL0028: Attribute 'enabled' in the resource at address '/profile=full/subsystem=datasources/data-source=ExampleDS' is deprecated, and may be removed in future version. See the attribute description in the output of the read-resource-description operation to learn more about the deprecation.
09:22:07,843 INFO  [org.jboss.as.controller.management-deprecated] (Controller Boot Thread) WFLYCTL0028: Attribute 'enabled' in the resource at address '/profile=full-ha/subsystem=datasources/data-source=ExampleDS' is deprecated, and may be removed in future version. See the attribute description in the output of the read-resource-description operation to learn more about the deprecation.
09:22:08,067 INFO  [org.jboss.as] (Controller Boot Thread) WFLYSRV0025: EAP 7.0.0.Alpha1 (WildFly Core 2.0.0.Beta4) (Host Controller) started in 1353ms - Started 25 of 27 services (8 services are lazy, passive or on-demand)
[domain@embedded /] stop-embedded-host-controller 
09:22:15,926 INFO  [org.jboss.as] (MSC service thread 1-4) WFLYSRV0050: EAP 7.0.0.Alpha1 (WildFly Core 2.0.0.Beta4) stopped in 5ms
[disconnected /] exit