fix unicode error in printing access log (Bug#277334)

Author: anandology

web/httpserver.py

@@ -3,6 +3,7 @@
 import sys, os
 import webapi as web
 import net
+import utils
 
 def runbasic(func, server_address=("0.0.0.0", 8080)):
     """
@@ -212,7 +213,7 @@ def log(self, status, environ):
             time = self.log_date_time_string()
 
             msg = self.format % (host, time, protocol, method, req, status)
-            print >> outfile, msg.encode('utf-8')
+            print >> outfile, utils.safestr(msg)
 
     func = WSGIWrapper(func)
     server = CherryPyWSGIServer(server_address, func, server_name="localhost")