--- utils/pltcl.c.orig
+++ utils/pltcl.c
@@ -119,7 +119,7 @@
 //
 // Results:
 //	Returns a standard Tcl completion code, and leaves an error
-//	message in interp->result if an error occurs.
+//	message in Tcl_GetStringResult(interp) if an error occurs.
 //
 // Side effects:
 //	Depends on the startup script.