Prune /tmp traversal at .X11-unix

Since /tmp might be a link to /var/tmp, prune at ssh-* or .X11-unix
like the find on /tmp does.

src/etc/daily

@@ -1,6 +1,6 @@
 #!/bin/sh -
 #
-#	$OpenBSD: daily,v 1.30 2000/04/28 00:47:55 itojun Exp $
+#	$OpenBSD: daily,v 1.31 2000/04/29 18:45:58 millert Exp $
 #	From: @(#)daily	8.2 (Berkeley) 1/25/94
 #
 PATH=/bin:/usr/bin:/sbin:/usr/sbin:/usr/local/bin
@@ -21,14 +21,16 @@ echo ""
 echo "Removing scratch and junk files:"
 if [ -d /tmp -a ! -h /tmp ]; then
 	cd /tmp && {
-	find -x . -name 'ssh-*' -prune -o -type f -atime +3 -execdir rm -f -- {} \;
+	find -x . \( -name 'ssh-*' -o -name '.X11-unix' \) -prune -o \
+	    -type f -atime +3 -execdir rm -f -- {} \;
 	find -x . ! -name . -type d -mtime +1 -execdir rmdir -- {} \; \
 	    >/dev/null 2>&1; }
 fi
 
 if [ -d /var/tmp -a ! -h /var/tmp ]; then
 	cd /var/tmp && {
-	find -x . ! -name . ! -type d -atime +7 -execdir rm -f -- {} \;
+	find -x . \( -name 'ssh-*' -o -name '.X11-unix' \) -prune -o \
+	    ! -type d -atime +7 -execdir rm -f -- {} \;
 	find -x . ! -name . -type d -mtime +1 -execdir rmdir -- {} \; \
 	    >/dev/null 2>&1; }
 fi