Index: trunk/ippScripts/scripts/stack_skycell.pl
===================================================================
--- trunk/ippScripts/scripts/stack_skycell.pl	(revision 14274)
+++ trunk/ippScripts/scripts/stack_skycell.pl	(revision 14718)
@@ -86,5 +86,5 @@
 }
 
-&my_die("Subtraction list contains more than two elements", $stack_id, $PS_EXIT_SYS_ERROR) unless
+&my_die("Stack list contains less than two elements", $stack_id, $PS_EXIT_SYS_ERROR) unless
     scalar @$files >= 2;