RFR: JDK-8167424 Various trivial fixes in build system

Mon Oct 10 09:22:18 UTC 2016

This is a collection of various trivial fixes on stuff I noticed when 
reviewing the accumulated changes in the build system the last months.

The majority of the fixes is updating the copyright year for modified 
files. On top of this, there's also a few other fixes:

* Fix spaces and indentation.
* Fix typo.
* Remove all usages of USE_NEW_HOTSPOT_BUILD.
* Use - instead of / for compiler options, even on Windows.
* Remove old hotspot workaround for logging.

Bug: https://bugs.openjdk.java.net/browse/JDK-8167424
WebRev: 
http://cr.openjdk.java.net/~ihse/JDK-8167424-various-trivial-fixes-in-buildsystem/webrev.01

/Magnus