hg: jigsaw/jigsaw/jdk: Check if config directory exists before use

[dalibor.topic at sun.com]

Changeset: 321a34dd0dc1
Author:    robilad
Date:      2010-04-30 23:22 +0200
URL:       http://hg.openjdk.java.net/jigsaw/jigsaw/jdk/rev/321a34dd0dc1

Check if config directory exists before use

! src/share/classes/org/openjdk/jigsaw/cli/Packager.java
! test/org/openjdk/jigsaw/cli/JpkgArgsTest.java