--- io.c.orig	Sun Jun 29 11:05:36 2003
+++ io.c	Sun Jun 29 11:06:48 2003
@@ -96,6 +96,10 @@
 					      putchar(c);
 				      break;
 			      }
+			      case '%': {
+				      putchar(c);
+				      break;
+			      }
 			}
 }