Avoid advertising private option
diff --git a/scripts/config.pl b/scripts/config.pl
index d04be59..8998fd6 100755
--- a/scripts/config.pl
+++ b/scripts/config.pl
@@ -6,10 +6,11 @@
 use strict;
 
 my $usage = <<EOU;
-$0 [-f <file>] full
 $0 [-f <file>] unset <name>
 $0 [-f <file>] set <name> [<value>]
 EOU
+# for our eyes only:
+# $0 [-f <file>] full
 
 # Things that shouldn't be enabled with "full".
 # Notes: