hg: jdk7/tl/jdk: 6937978: let keytool -gencert generate the chain

[weijun . wang]

Changeset: db4fd2fdf196
Author:    weijun
Date:      2010-04-16 10:06 +0800
URL:       http://hg.openjdk.java.net/jdk7/tl/jdk/rev/db4fd2fdf196

6937978: let keytool -gencert generate the chain
Reviewed-by: mullan

! src/share/classes/sun/security/tools/KeyTool.java
! test/sun/security/tools/keytool/selfissued.sh