SF bug 666444: 'help' makes linefeed only under Win32.

Reverting one of those irritating "security fixes".  fdopen() opens
files in binary mode.  That makes pydoc skip the \r\n on Windows that's
need to make the output readable in the shell.  Screw it.

Lib/pydoc.py

@@ -1229,8 +1229,8 @@ def pipepager(text, cmd):
 def tempfilepager(text, cmd):
     """Page through text by invoking a program on a temporary file."""
     import tempfile
-    (fd, filename) = tempfile.mkstemp()
-    file = os.fdopen(fd, 'w')
+    filename = tempfile.mktemp()
+    file = open(filename, 'w')
     file.write(text)
     file.close()
     try: