RFR: JDK-8171932: unresolved macro in javadoc command

[Tim Bell]

Erik:

> In the new Javadoc.gmk, there is a problem with a make variable,
> $(HASH), that doesn't get resolved properly into # in the final html
> files. My conclusion is that the # character is problematic when being
> passed inside an argument to one of our named parameter macros. I have
> fixed this by always escaping any # characters in the input parameters
> to these macros. With this fix, the html files come out with the correct
> # and the background color of the snippet looks correct.
>
> Bug: https://bugs.openjdk.java.net/browse/JDK-8171932
>
> Webrev: http://cr.openjdk.java.net/~erikj/8171932/webrev.01/

Looks good to me.

Tim