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From: "Suu Quan" <squan@wwc.com>
To: "ANT user group" <ant-user@jakarta.apache.org>
Subject: apply task vs execon task
Date: Fri, 25 May 2001 14:06:42 -0700
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In reading the manual, I don't see any reason, subtle or not why I should
use one over the other.

In additon I found this to be not true

Parameters specified as nested elements
...
env
...
Please note that the environment of the current Ant process is NOT passed to
the system command if  you specify variables using <env>

I did insert this line
 <env key="XX" value="see no evil"/>
just to see if the environment is preserved: it is, all the environment
variables exist in the subprocess and have the same values.