RFR 8160063: Provide a means to disable a plugin via the command line

[Mandy Chung]

> On Sep 15, 2016, at 7:31 AM, Sundararajan Athijegannathan <sundararajan.athijegannathan at oracle.com> wrote:
> 
> Please review http://cr.openjdk.java.net/~sundar/8160063/webrev.01/ for https://bugs.openjdk.java.net/browse/JDK-8160063
> 
> * Adding --disable-<plugin_name> option for any plugin that is auto-enabled.

A consistent mechanism to disable a plugin is good.

The Section class is not used anywhere.  Should the entire class be removed?  Or move it to JmodArchive to replace the final String constants.

Can you include "--disable-<plugin_name>” and its help message in jlink —-list-plugins help output?  It can be placed toward the bottom before:

For options requiring a <pattern-list>, the value will be a comma separated list of elements each using one the following forms:
  <glob-pattern>
  glob:<glob-pattern>
  regex:<regex-pattern>
  @<filename> where filename is the name of a file containing patterns to be used, one pattern per line

Can you also fix the two long lines above as missing \n in main.extended.help.footer

Otherwise, looks fine.
Mandy