Make sys.netinet.output and sys.netinet6.output6 tests depend on python;

they need to be able to run net_receiver.py.

MFC after:	2 weeks
Sponsored by:	DARPA

tests/sys/netinet/Makefile

@@ -10,6 +10,7 @@ ATF_TESTS_C=	ip_reass_test \
 		socket_afinet
 
 ATF_TESTS_SH=	carp fibs_test redirect divert forward output lpm
+TEST_METADATA.output+=	required_programs="python"
 
 PROGS=	udp_dontroute tcp_user_cookie
 

tests/sys/netinet6/Makefile

@@ -14,6 +14,7 @@ ATF_TESTS_SH=			\
 				forward6 \
 				output6 \
 				lpm6
+TEST_METADATA.output6+=	required_programs="python"
 
 ${PACKAGE}FILES+=		exthdr.py
 ${PACKAGE}FILES+=		mld.py