[PATCHv3 iproute2] bridge/mdb: fix missing new line when show bridge mdb

[Hangbin Liu <liuhangbin@gmail.com>]

The bridge mdb show is broken on current iproute2. e.g.
]# bridge mdb show
34: br0  veth0_br  224.1.1.2  temp 34: br0  veth0_br  224.1.1.1  temp

After fix:
]# bridge mdb show
34: br0  veth0_br  224.1.1.2  temp
34: br0  veth0_br  224.1.1.1  temp

v2: Use json print lib as Stephen suggested.
v3: No need to use is_json_context() as Phil pointed out.

Reported-by: Ying Xu <yinxu@redhat.com>
Fixes: c7c1a1ef51aea ("bridge: colorize output and use JSON print library")
Signed-off-by: Hangbin Liu <liuhangbin@gmail.com>
---
 bridge/mdb.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/bridge/mdb.c b/bridge/mdb.c
index f38dc67..2f24b01 100644
--- a/bridge/mdb.c
+++ b/bridge/mdb.c
@@ -107,6 +107,10 @@ static void br_print_router_ports(FILE *f, struct rtattr *attr,
 			fprintf(f, "%s ", port_ifname);
 		}
 	}
+
+	if (!show_stats)
+		print_string(PRINT_FP, NULL, "\n", NULL);
+
 	close_json_array(PRINT_JSON, NULL);
 }
 
@@ -164,6 +168,8 @@ static void print_mdb_entry(FILE *f, int ifindex, const struct br_mdb_entry *e,
 		print_string(PRINT_ANY, "timer", " %s",
 			     format_timer(timer));
 	}
+
+	print_string(PRINT_FP, NULL, "\n", NULL);
 	close_json_object();
 }
 
-- 
2.5.5