SF #517447, correct syntax error

git-svn-id: http://svn.python.org/projects/python/trunk@25464 6015fed2-1504-0410-9fe1-9d1591cc4771

Author: nnorwitz

Demo/tix/tixwidgets.py

@@ -135,8 +135,7 @@ def loop(self):
         import tkMessageBox, traceback
         while self.exit < 0:
             try:
-        while self.exit < 0:
-            self.root.tk.dooneevent(TCL_ALL_EVENTS)
+                self.root.tk.dooneevent(TCL_ALL_EVENTS)
             except SystemExit:
                 #print 'Exit'
                 self.exit = 1