hg: jdk/sandbox: 8211326: add OS user related information to hs_err file

[chris.hegarty at oracle.com]

Changeset: f7f90fddce02
Author:    mbaesken
Date:      2018-11-15 17:08 +0100
URL:       http://hg.openjdk.java.net/jdk/sandbox/rev/f7f90fddce02

8211326: add OS user related information to hs_err file
Reviewed-by: dholmes, stuefe

! src/hotspot/os/posix/os_posix.cpp
! src/hotspot/os/posix/os_posix.hpp
! src/hotspot/share/utilities/vmError.cpp