add native-dup3 to systrace.filter?

[patrick keshishian]

building gstreamer1-1.2.4 barffed w/o this.

--patrick

$ sysctl kern.version
kern.version=OpenBSD 5.6-current (GENERIC) #345: Tue Sep  9 00:22:24 MDT 2014
    t...@amd64.openbsd.org:/usr/src/sys/arch/amd64/compile/GENERIC

Index: db/systrace.filter
===================================================================
RCS file: /cvs/obsd/ports/infrastructure/db/systrace.filter,v
retrieving revision 1.44
diff -u -p -u -p -r1.44 systrace.filter
--- db/systrace.filter  3 Sep 2014 10:21:39 -0000       1.44
+++ db/systrace.filter  11 Sep 2014 08:55:18 -0000
@@ -46,6 +46,7 @@
        native-connect: sockaddr match "${TMPDIR}" then permit
        native-connect: sockaddr match "${WRKDIR}" then permit
        native-connect: sockaddr match "/<non-existent filename>: *" then 
deny[enoent]
+       native-dup3: permit
        native-dup2: permit
        native-dup: permit
        native-execve: true then permit