Small rewording to remove ambiguity.

A package can actually "change" after an update even if its version does
not and yet it will not appear in the security(8) output.
wording by eric@
ok mbalmer@

src/etc/security

@@ -1,6 +1,6 @@
 #!/bin/sh -
 #
-#	$OpenBSD: security,v 1.81 2008/07/23 16:05:47 sthen Exp $
+#	$OpenBSD: security,v 1.82 2009/03/23 15:14:50 ajacoutot Exp $
 #	from: @(#)security	8.1 (Berkeley) 6/9/93
 #
 
@@ -753,7 +753,7 @@ if pkg_info > $file 2>&1 ; then
 	if [ -s $CUR ] ; then
 		diff -u $CUR $file > $OUTPUT
 		if [ -s $OUTPUT ] ; then
-			echo "\n======\nInstalled package changes (-OLD  +NEW)\n======"
+			echo "\n======\nPackage list changes (-OLD  +NEW)\n======"
 			cat $OUTPUT
 			cp -p $CUR $BACK
 			cp -p $file $CUR