Add latest errata notice:

Fix error in patch for FreeBSD-EN-13:04.freebsd-update [EN-13:05].

share/security/patches/EN-13:05/freebsd-update.patch

@@ -0,0 +1,17 @@
+Index: usr.sbin/freebsd-update/freebsd-update.sh
+===================================================================
+--- usr.sbin/freebsd-update/freebsd-update.sh	(revision 257878)
++++ usr.sbin/freebsd-update/freebsd-update.sh	(revision 257879)
+@@ -2884,10 +2884,10 @@
+ 	install_delete INDEX-OLD INDEX-NEW || return 1
+ 
+ 	# Remove old directories
++	grep -vE '^/boot/' $1/INDEX-NEW |
++	    grep -E '^[^|]+\|d\|' > INDEX-NEW
+ 	grep -vE '^/boot/' $1/INDEX-OLD |
+ 	    grep -E '^[^|]+\|d\|' > INDEX-OLD
+-	grep -vE '^/boot/' $1/INDEX-OLD |
+-	    grep -E '^[^|]+\|d\|' > INDEX-OLD
+ 	install_delete INDEX-OLD INDEX-NEW || return 1
+ 
+ 	# Remove temporary files

share/security/patches/EN-13:05/freebsd-update.patch.asc

@@ -0,0 +1,16 @@
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