hg: build-infra/jdk8: At the end of a successful configure run, tell the user clearly what has

[magnus.ihse.bursie at oracle.com]

Changeset: 1892e02272d4
Author:    ihse
Date:      2012-04-26 11:15 +0200
URL:       http://hg.openjdk.java.net/build-infra/jdk8/rev/1892e02272d4

At the end of a successful configure run, tell the user clearly what has
happened.

! common/autoconf/configure
! common/autoconf/configure.ac
! common/autoconf/help.m4