hg: jdk/sandbox: 8224750: Display thread once in Internal exceptions event log lines

[chris.hegarty at oracle.com]

Changeset: ea1e4a818785
Author:    mbaesken
Date:      2019-05-24 14:32 +0200
URL:       http://hg.openjdk.java.net/jdk/sandbox/rev/ea1e4a818785

8224750: Display thread once in Internal exceptions event log lines
Reviewed-by: mdoerr

! src/hotspot/share/utilities/events.cpp