hg: jdk8/tl: 8023433: Improve 'make help'

[mike . duigou]

Changeset: c8da1b6a9762
Author:    mduigou
Date:      2013-08-20 17:44 -0700
URL:       http://hg.openjdk.java.net/jdk8/tl/rev/c8da1b6a9762

8023433: Improve 'make help'
Reviewed-by: tbell

! NewMakefile.gmk