Removed merge glitch from stringlib/find.h as explained on the python committers list. The FROM_BYTEARRAY isn't required here.
This also fixes bug #3713
diff --git a/Objects/stringlib/find.h b/Objects/stringlib/find.h
index ac37b40..46337e1 100644
--- a/Objects/stringlib/find.h
+++ b/Objects/stringlib/find.h
@@ -90,7 +90,7 @@
     return stringlib_rfind(str + start, end - start, sub, sub_len, start);
 }
 
-#ifdef STRINGLIB_WANT_CONTAINS_OBJ && !defined(FROM_BYTEARRAY)
+#ifdef STRINGLIB_WANT_CONTAINS_OBJ
 
 Py_LOCAL_INLINE(int)
 stringlib_contains_obj(PyObject* str, PyObject* sub)