Index: /trunk/psphot/src/psphotApResid.c
===================================================================
--- /trunk/psphot/src/psphotApResid.c	(revision 10277)
+++ /trunk/psphot/src/psphotApResid.c	(revision 10278)
@@ -121,5 +121,5 @@
     }
 
-    // APTREND options : NONE SKYBIAS XY_LIN XY_QUAD SKY_XY_LIN FULL
+    // APTREND options : NONE CONSTANT SKYBIAS XY_LIN XY_QUAD SKY_XY_LIN FULL
     // APTREND options are used in the switch block below
     pmPSFApTrendOptions ApTrendOption = DEFAULT_OPTION;