RFR: JDK-8168836 Minor clean up on warning/error messages

[Mandy Chung]

> On Nov 14, 2016, at 1:22 PM, Patrick Reinhart <patrick at reini.net> wrote:
> 
> Ups, previous mail contained wrong URL. Here’s the correct one:
> 
> http://cr.openjdk.java.net/~reinhapa/reviews/8168836/webrev.00

 879                 log.println(getMessage("err.missing.dependences"));

This should call reportError method that will prepend with “error.prefix”.  So no need to have “ERROR:” in “err.missing.dependences” message.

Formatting Nit: line 541-542 and line 753-754 align to the first parameter of the method.

Otherwise looks good.  I can sponsor it.

Mandy