Index: generic/nsfError.c
===================================================================
diff -u -N -r34e5bc1b7adfbdd47a74590045b8b1310373a760 -r8d2096ecf0bbe174618e0f3b369c51e9d403d2c4
--- generic/nsfError.c	(.../nsfError.c)	(revision 34e5bc1b7adfbdd47a74590045b8b1310373a760)
+++ generic/nsfError.c	(.../nsfError.c)	(revision 8d2096ecf0bbe174618e0f3b369c51e9d403d2c4)
@@ -159,7 +159,7 @@
     assert(failure == 0);
     
     if (unlikely(failure != 0)) {
-      fprintf(stderr, "copying variable argument vector into dynamic string failed\n");
+      fprintf(stderr, "writing string-formatting output to a dynamic Tcl string failed\n");
     }
   }
 }