Rename the suffix of two pcapng test files to .pcapng

Author: fxlb

tests/TESTLIST

@@ -132,8 +132,8 @@ mpls-over-udp-v  mpls-over-udp.pcap  mpls-over-udp-v.out -v
 ospf-gmpls	ospf-gmpls.pcap				ospf-gmpls.out		-v
 ospf-nssa-bitnt	ospf-nssa-bitnt.pcap			ospf-nssa-bitnt.out	-v
 ospf-ack	ospf-ack.pcap				ospf-ack.out		-v
-ospf-sr         ospf-sr.pcap                            ospf-sr-v.out           -v
-ospf-sr2        ospf-sr2.pcap                           ospf-sr2-v.out          -v
+ospf-sr         ospf-sr.pcapng                            ospf-sr-v.out           -v
+ospf-sr2        ospf-sr2.pcapng                           ospf-sr2-v.out          -v
 ospf3_ah-vv	OSPFv3_with_AH.pcap			ospf3_ah-vv.out		-v -v
 ospf3_auth-vv	ospf3_auth.pcapng			ospf3_auth-vv.out	-v -v
 ospf3_bc-vv	OSPFv3_broadcast_adjacency.pcap		ospf3_bc-vv.out		-v -v