merge revision(s) 39364:

	* doc/globals.rdoc:  Document what setting $VERBOSE does.  [Bug #7899]

	* doc/globals.rdoc:  Added pointer to $-w and $-v for full
	  documentation.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_0_0@39656 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
merge revision(s) 39365:

	* doc/globals.rdoc:  Document what setting $DEBUG does.

	* doc/globals.rdoc:  Added pointer to $-d for full documentation.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_0_0@39657 b2dd03c8-39d4-4d8f-98ff-823fe69b080e