Don't compress wtmp by default; the tools dealing with this log are

cumbersome to use with compressed files. Idea from ian@ following
a discussion started with a diff to last(1) from by Peter Philipp.
ok martynas@ mk@ millert@

src/etc/newsyslog.conf

@@ -1,4 +1,4 @@
-#	$OpenBSD: newsyslog.conf,v 1.28 2010/06/29 10:25:13 stephan Exp $
+#	$OpenBSD: newsyslog.conf,v 1.29 2011/04/14 20:32:34 sthen Exp $
 #
 # configuration file for newsyslog
 #
@@ -11,7 +11,7 @@
 /var/log/maillog			600  7     *    24    Z
 /var/log/messages			644  5     30   *     Z
 /var/log/secure				600  7     *    168   Z
-/var/log/wtmp				644  7     *    $W6D4 ZB
+/var/log/wtmp				644  7     *    $W6D4 B
 /var/log/xferlog			640  7     250  *     Z
 /var/log/ppp.log			640  7     250  *     Z
 /var/log/pflog				600  3     250  *     ZB "pkill -HUP -u root -U root -t - -x pflogd"