try fix qt Builder

BuildBotLib/qtUpdater.py

@@ -2,18 +2,17 @@
 
 from BuildBotLib.make import Make
 from BuildBotLib.basemodule import BaseModule
-
 from buildbot.plugins import util, steps
-
 import subprocess
 
 
 class QtUpdater(Make):
 
+    qtDefaultHelp = []
+    lastTargetDir = ""
+
     def __init__(self):
         Make.__init__(self)
-        self.qtDefaultHelp = []
-        self.lastTargetDir = ""
 
     def linuxXmakeCmd(self, props):
         version = props.getProperty("branch")