io.StringIO has no attribute 'reset'.

src/world.py

@@ -165,13 +165,13 @@ def upkeep():
         s = sys.stdout.getvalue()
         if s:
             log.warning('Printed to stdout after daemonization: %s', s)
-            sys.stdout.reset() # Seeks to 0.
+            sys.stdout.seek(0)
             sys.stdout.truncate() # Truncates to current offset.
         assert not type(sys.stderr) == file, 'Not a StringIO object!'
         s = sys.stderr.getvalue()
         if s:
             log.error('Printed to stderr after daemonization: %s', s)
-            sys.stderr.reset() # Seeks to 0.
+            sys.stderr.seek(0)
             sys.stderr.truncate() # Truncates to current offset.
     doFlush = conf.supybot.flush() and not starting
     if doFlush: