Fix trailing whitespace in scripts and misc. files

Tools/Scripts/webkitpy/thirdparty/unittest2/signals.py

 import signal
 import weakref
 
 from unittest2.compatibility import wraps
 
 __unittest = True
 
 
 class _InterruptHandler(object):
     def __init__(self, default_handler):
         self.called = False
         self.default_handler = default_handler
 
     def __call__(self, signum, frame):
         installed_handler = signal.getsignal(signal.SIGINT)
         if installed_handler is not self:
             # if we aren't the installed handler, then delegate immediately
             # to the default handler
             self.default_handler(signum, frame)
-            
+
         if self.called:
             self.default_handler(signum, frame)
         self.called = True
         for result in _results.keys():
             result.stop()
 
 _results = weakref.WeakKeyDictionary()
 def registerResult(result):
     _results[result] = 1
 
@@ skipping 17 matching lines @@
             removeHandler()
             try:
                 return method(*args, **kwargs)
             finally:
                 signal.signal(signal.SIGINT, initial)
         return inner
 
     global _interrupt_handler
     if _interrupt_handler is not None:
         signal.signal(signal.SIGINT, _interrupt_handler.default_handler)