hg: jdk/sandbox: 8216562: UnknownBodyLength sometimes fails due to "Connection reset by peer"

[chris.hegarty at oracle.com]

Changeset: f5480f924571
Author:    dfuchs
Date:      2019-01-30 18:21 +0000
URL:       http://hg.openjdk.java.net/jdk/sandbox/rev/f5480f924571

8216562: UnknownBodyLength sometimes fails due to "Connection reset by peer"
Summary: uses a longer linger time and avoids closing socket too early.
Reviewed-by: chegar

! test/jdk/java/net/httpclient/UnknownBodyLengthTest.java