hg: ppc-aix-port/jdk7u/jdk: Extend existing Solaris behaviour to cover AIX and treat empty TZ envvar same as no TZ envvar

[spoole at linux.vnet.ibm.com]

Changeset: 4e0d3452bac6
Author:    spoole <spoole at linux.vnet.ibm.com>
Date:      2012-07-11 08:39 +0100
URL:       http://hg.openjdk.java.net/ppc-aix-port/jdk7u/jdk/rev/4e0d3452bac6

Extend existing Solaris behaviour to cover AIX and treat empty TZ envvar same as no TZ envvar

! src/solaris/native/java/util/TimeZone_md.c