test: move error messages into logs gh-5366

Set error message to log output in test:

  replication/gh-4402-info-errno.test.lua

test/replication/gh-4402-info-errno.result

@@ -27,7 +27,7 @@ i = box.info
 replica_id = i.id % 2 + 1
  | ---
  | ...
-test_run:wait_downstream(replica_id, {status = 'follow'}) or i
+test_run:wait_downstream(replica_id, {status = 'follow'}) or require('log').error(i)
  | ---
  | - true
  | ...
@@ -50,7 +50,7 @@ i = box.info
 d = i.replication[replica_id].downstream
  | ---
  | ...
-d ~= nil and d.system_message ~= nil and d.message ~= nil or i
+d ~= nil and d.system_message ~= nil and d.message ~= nil or require('log').error(i)
  | ---
  | - true
  | ...

test/replication/gh-4402-info-errno.test.lua

@@ -12,13 +12,13 @@ test_run:cmd('create server replica with rpl_master=default, script="replication
 test_run:cmd('start server replica')
 i = box.info
 replica_id = i.id % 2 + 1
-test_run:wait_downstream(replica_id, {status = 'follow'}) or i
+test_run:wait_downstream(replica_id, {status = 'follow'}) or require('log').error(i)
 
 test_run:cmd('stop server replica')
 test_run:cmd("cleanup server replica")
 test_run:cmd("delete server replica")
 i = box.info
 d = i.replication[replica_id].downstream
-d ~= nil and d.system_message ~= nil and d.message ~= nil or i
+d ~= nil and d.system_message ~= nil and d.message ~= nil or require('log').error(i)
 
 box.schema.user.revoke('guest', 'replication')