Review request for JDK-8193298: Don't run javadoc with test.single

[Attila Szegedi]

Please review JDK-8193298 "Don't run javadoc with test.single" at 
<http://cr.openjdk.java.net/~attila/8193298/webrev.jdk> for 
<https://bugs.openjdk.java.net/browse/JDK-8193298>

Thanks,
  Attila.