test: flaky replication/status.test.lua test fails at 234 line

[avtikhon]

Tarantool version:
Tarantool 2.6.0-153-gf6b034add2
Target: Linux-x86_64-RelWithDebInfo
Build options: cmake . -DCMAKE_INSTALL_PREFIX=/usr/local -DENABLE_BACKTRACE=ON
Compiler: /usr/bin/cc /usr/bin/c++
C_FLAGS: -static-libstdc++ -fexceptions -funwind-tables -fno-omit-frame-pointer -fno-stack-protector -fno-common -fopenmp -msse2 -std=c11 -Wall -Wextra -Wno-strict-aliasing -Wno-char-subscripts -Wno-format-truncation -Wno-gnu-alignof-expression -fno-gnu89-inline -Wno-cast-function-type -Werror
CXX_FLAGS: -static-libstdc++ -fexceptions -funwind-tables -fno-omit-frame-pointer -fno-stack-protector -fno-common -fopenmp -msse2 -std=c++11 -Wall -Wextra -Wno-strict-aliasing -Wno-char-subscripts -Wno-format-truncation -Wno-invalid-offsetof -Wno-gnu-alignof-expression -Wno-cast-function-type -Werror

OS version:
Linux (Debian 9)

Bug description:
https://gitlab.com/tarantool/tarantool/-/jobs/784588504#L4501

artifacts.zip

results file checksum: 1bc90c82de8f8dc7939d78aff4054daf

[056] --- replication/status.result	Fri Oct  9 06:24:47 2020
[056] +++ replication/status.reject	Sun Oct 11 16:09:57 2020
[056] @@ -234,7 +234,7 @@
[056]  ...
[056]  master.upstream.idle < 1
[056]  ---
[056] -- true
[056] +- false
[056]  ...
[056]  master.upstream.peer:match("unix/")
[056]  ---
[056] 

Steps to reproduce:

Optional (but very desirable):

• coredump
• backtrace
• netstat