Ping! for a few PRs

[Chris Plummer]

Hi All,

I have 4 PRs that need reviewing. For the most part they are pretty 
simple and some already have one review. Can I get some volunteers 
please? I would especially like to get the first two pushed since they 
are causing frequent failures in our CI testing.

https://github.com/openjdk/jdk/pull/2637
8261929: ClhsdbFindPC fails with java.lang.RuntimeException: 'In java 
stack' missing from stdout/stderr

https://github.com/openjdk/jdk/pull/2624
8261857: serviceability/sa/ClhsdbPrintAll.java failed with "Test ERROR 
java.lang.RuntimeException: 'cannot be cast to' found in stdout"

https://github.com/openjdk/jdk/pull/2582
8261269: When using clhsdb to "inspect" a java object, clhsdb prints 
"Oop for..." twice

https://github.com/openjdk/jdk/pull/2565
8261692: Bugs in clhsdb history support

thanks!

Chris