hg: openjfx/10-dev/rt: 8194488: "javapackager -singleton" is not working in linux

[victor.drozdov at oracle.com]

Changeset: b43e44ecc365
Author:    vdrozdov
Date:      2018-01-08 22:25 -0800
URL:       http://hg.openjdk.java.net/openjfx/10-dev/rt/rev/b43e44ecc365

8194488: "javapackager -singleton" is not working in linux
Reviewed-by: almatvee

! modules/jdk.packager/src/main/native/library/common/PosixPlatform.cpp
! modules/jdk.packager/src/main/native/library/common/PosixPlatform.h