set_file_path.h in kgio-2.9.0

- old
+ new

@@ -1,4 +1,5 @@
+/* We do not modify RSTRING in this file, so RSTRING_MODIFIED is not needed */
 #if defined(HAVE_RB_IO_T) && \
     defined(HAVE_TYPE_STRUCT_RFILE) && \
     defined(HAVE_ST_PATHV)
 /* MRI 1.9 */
 static void set_file_path(VALUE io, VALUE path)