* lib/logger.rb: check if the given logdevice object respond_to :write and

:close, not is_a? IO.  duck duck.

* test/logger/test_logger.rb: self IO.pipe reading/writing may be locked by the
  flood.  use tempfile.

* lib/wsdl/xmlSchema/data.rb: wrong constant reference.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@4622 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

lib/logger.rb

@@ -322,7 +322,7 @@ private
     #
     def initialize(log = nil, opt = {})
       @dev = @filename = @shift_age = @shift_size = nil
-      if log.is_a?(IO)
+      if log.respond_to?(:write) and log.respond_to?(:close)
 	@dev = log
       elsif log.is_a?(String)
 	@dev = open_logfile(log)