Index: trunk/ppStack/src/ppStackArguments.c
===================================================================
--- trunk/ppStack/src/ppStackArguments.c	(revision 34800)
+++ trunk/ppStack/src/ppStackArguments.c	(revision 42094)
@@ -197,5 +197,5 @@
     }
 
-    // stack-type : used to define the stack for PSPS
+    // stack-type : used to define the stack for PSPS (added as metadata to header key STK_TYPE)
     if ((argNum = psArgumentGet (argc, argv, "-stack-type"))) {
 	if (argc <= argNum+1) {