[teststabilization] RFR: 8233403: Improve verbosity of some httpclient tests

[Chris Hegarty]

> On 5 Nov 2019, at 15:36, Daniel Fuchs <daniel.fuchs at oracle.com> wrote:
> 
> On 05/11/2019 15:25, Chris Hegarty wrote:
>> So the server is getting a connection from “something else” on on the network, and your changes protect against that, right? Is there any value, from a diagnostic point of view, to emitting whatever “unexpected” data is received?
> 
> Ah - no. Actually the server is getting a "Connection Reset",
> which shows up intermittently and caused the update of the
> counter to be skipped.
> ..

Ok, thanks. The changes have my Review.

-Chris