Fix tests failing after the last commit

Follow-up dd30970e ("replication: log replica_id in addition to lsn
on conflict").

test/unit/xrow.cc

@@ -244,6 +244,7 @@ test_request_str()
 {
 	plan(1);
 	struct xrow_header header;
+	header.replica_id = 5;
 	header.lsn = 100;
 	struct request request;
 	request.header = &header;
@@ -263,7 +264,8 @@ test_request_str()
 	request.ops = pos;
 	pos = mp_encode_array(pos, 1);
 	pos = mp_encode_uint(pos, 400);
-	is(strcmp("{type: 'SELECT', lsn: 100, space_id: 512, index_id: 1, "\
+	is(strcmp("{type: 'SELECT', replica_id: 5, lsn: 100, "
+		  "space_id: 512, index_id: 1, "
 		  "key: [200], tuple: [300], ops: [400]}",
 		  request_str(&request)), 0, "request_str");
 

test/xlog/panic_on_broken_lsn.result

@@ -94,7 +94,7 @@ logpath = fio.pathjoin(fio.cwd(), 'panic.log')
 grep_file_tail(logpath, 256, "LSN for 1 is used twice or COMMIT order is broken: confirmed: 1, new: 1, req: {.*}")
 ---
 - 'LSN for 1 is used twice or COMMIT order is broken: confirmed: 1, new: 1, req: {type:
-  ''REPLACE'', lsn: 1, space_id: 272, index_id: 0, tuple: ["t0", "v1"]}'
+  ''REPLACE'', replica_id: 1, lsn: 1, space_id: 272, index_id: 0, tuple: ["t0", "v1"]}'
 ...
 test_run:cmd('cleanup server panic')
 ---
@@ -162,7 +162,8 @@ test_run:cmd("push filter 'confirmed: "..lsn..", new: "..lsn.."' to '<lsn>'")
 grep_file_tail(logpath, 256, "(LSN for 1 is used twice or COMMIT order is broken: confirmed: "..lsn..", new: "..lsn.."), req: ({.*})")
 ---
 - 'LSN for 1 is used twice or COMMIT order is broken: <lsn>'
-- '{type: ''INSERT'', lsn: <lsn>, space_id: <space_id>, index_id: 0, tuple: [2, "v1"]}'
+- '{type: ''INSERT'', replica_id: 1, lsn: <lsn>, space_id: <space_id>, index_id: 0, tuple: [2,
+  "v1"]}'
 ...
 test_run:cmd("clear filter")
 ---