src/Pure/POLY.ML

--- a/src/Pure/POLY.ML	Wed Mar 05 10:02:53 1997 +0100
+++ b/src/Pure/POLY.ML	Wed Mar 05 10:03:30 1997 +0100
@@ -123,5 +123,5 @@
   end;
 
 
-
+(*Non-printing and 8-bit chars are forbidden in string constants*)
 val needs_filtered_use = true;