This is a patch for "at" 3.1.11.  It disables an annoying warning mes-
sage.

--- at-3.1.11.old/at.c
+++ at-3.1.11/at.c
@@ -924,7 +924,12 @@
 	   It also alows a warning diagnostic to be printed.  Because of the
 	   possible variance, we always output the diagnostic. */
 
+/* Local change:  It's annoying  to see  this  message  all the */
+/* time. We've disabled it locally.                             */
+
+#ifdef NOTDEF                   /* Disable message              */
 	fprintf(stderr, "warning: commands will be executed using /bin/sh\n");
+#endif                          /* Endif NOTDEF                 */
 
 	writefile(timer, queue);
 	break;