This reverts r63675 based on the discussion in this thread:

 http://mail.python.org/pipermail/python-dev/2008-June/079988.html

Python 2.6 should stick with PyString_* in its codebase.  The PyBytes_* names
in the spirit of 3.0 are available via a #define only.  See the email thread.
diff --git a/Modules/syslogmodule.c b/Modules/syslogmodule.c
index a515a17..9e1ed06 100644
--- a/Modules/syslogmodule.c
+++ b/Modules/syslogmodule.c
@@ -71,7 +71,7 @@
 	S_ident_o = new_S_ident_o;
 	Py_INCREF(S_ident_o);
 
-	openlog(PyBytes_AsString(S_ident_o), logopt, facility);
+	openlog(PyString_AsString(S_ident_o), logopt, facility);
 
 	Py_INCREF(Py_None);
 	return Py_None;