Oops, don't suppress echo of the rm command in l2hclean!
diff --git a/Doc/Makefile b/Doc/Makefile
index 40f4891..8bf2cac 100644
--- a/Doc/Makefile
+++ b/Doc/Makefile
@@ -209,7 +209,7 @@
 	rm -f *.bak *.orig
 
 l2hclean:
-	@rm -rf api ext lib tut
+	rm -rf api ext lib tut
 
 # Remove temporaries as well as final products
 clobber: clean