hg: build-infra/jdk8/jdk: Make JDK build substantially less verbose by moving less important output to verbose log level.

[magnus.ihse.bursie at oracle.com]

Changeset: 080a914e25ec
Author:    ihse
Date:      2012-10-10 03:07 +0200
URL:       http://hg.openjdk.java.net/build-infra/jdk8/jdk/rev/080a914e25ec

Make JDK build substantially less verbose by moving less important output to verbose log level.

! makefiles/GensrcCharacterData.gmk
! makefiles/GensrcCharsetMapping.gmk
! makefiles/GensrcExceptions.gmk
! makefiles/GensrcSwing.gmk
! makefiles/Import.gmk