whitespaces and show help in case no option is provided

git-svn-id: file:///home/svn/framework3/trunk@13828 4d416f70-5f16-0410-b530-b9f4589650da

scripts/meterpreter/migrate.rb

@@ -4,6 +4,7 @@
 # This is meant as an illustration.
 #
 
+
 spawn = false
 kill = false
 target_pid = nil
@@ -31,7 +32,6 @@ opts.parse(args) { |opt, idx, val|
 	end
 }
 
-
 # Creates a temp notepad.exe to migrate to depending the architecture.
 def create_temp_proc()
 	sysinfo =  client.sys.config.sysinfo
@@ -46,6 +46,13 @@ def create_temp_proc()
 	proc = client.sys.process.execute(cmd, nil, {'Hidden' => true })
 	return proc.pid
 end
+# In case no option is provided show help
+if args.length == 0
+	print_line(opts.usage)
+	raise Rex::Script::Completed
+end
+
+### Main ###
 
 if client.platform =~ /win32|win64/
 	server = client.sys.process.open