diff -ruN man/config.4f.orig man/config.4f
--- man/config.4f.orig	Mon Jan  4 23:48:18 1999
+++ man/config.4f	Mon Jun 12 21:52:41 2000
@@ -1446,7 +1446,7 @@
 The command to place a phone call.
 The string is assumed to be suitable for use
 as a parameter to the
-.IR sprintf (3S)
+.IR snprintf (3S)
 function; so the ``%'' character should be escaped as ``%%''.
 The dial command must include a single ``%s'' where the number
 that is to be dialed is to be substituted.