RFR(S): 6626412 jstack using SA prints some info messages into err stream

[Staffan Larsen]

Please review this small fix to output SA message to stdout instead of stderr.

webrev: http://cr.openjdk.java.net/~sla/6626412/webrev.00/
bug: https://bugs.openjdk.java.net/browse/JDK-6626412

Thanks,
/Staffan