fix ArgumentError in everything that closes a process handle

git-svn-id: file:///home/svn/framework3/trunk@10776 4d416f70-5f16-0410-b530-b9f4589650da

lib/rex/post/meterpreter/extensions/stdapi/sys/process.rb

@@ -320,7 +320,7 @@ class Process < Rex::Post::Process
 	#
 	# Instance method
 	#
-	def close(handle)
+	def close(handle=self.handle)
 		self.class.close(self.client, handle)
 	end
 

lib/rex/post/meterpreter/extensions/stdapi/sys/thread.rb

@@ -167,7 +167,7 @@ class Thread < Rex::Post::Thread
 	end
 	
 	# Instance method
-	def self.close
+	def close
 		self.class.close(self.process.client, self.handle)
 	end