test: box-tap/cfg test fails on SuSE 15.x images

[avtikhon]

Tarantool version:
master

OS version:
SuSE 15.x

Bug description:
Issue:

[001] box-tap/cfg.test.lua                                            
[001] not ok 91 - bootstrap from non-empty vinyl_dir #  
[001] Expected: 256
[001] Got:      0
[001] Traceback:
[001] [main] at </source/test/box-tap/cfg.test.lua:0>
[001] 
[001] Rejected result file: box-tap/cfg.reject
[001] [ fail ]

Steps to reproduce:
Use any of the ways below:

1. Run commands:

cat >gh-4594.lua <<EOF
box.cfg{vinyl_dir = '/tmp/gh-4594'}
s = box.schema.space.create('test', {engine = 'vinyl'})
s:create_index('pk')
os.exit(0)
EOF

rm -rf gh-4594/ /tmp/gh-4594 ; mkdir gh-4594 && mkdir /tmp/gh-4594 && \
( cd gh-4594 && tarantool ../gh-4594.lua && rm -rf * && tarantool ../gh-4594.lua ; echo $? ) 

2. Create box-tap/cfg_gh-4594.test.lua:

#!/usr/bin/env tarantool
  
local tap = require('tap')
local test = tap.test('cfg')
local fio = require('fio')
test:plan(1)

local tarantool_bin = arg[-1]
local PANIC = 256
function run_script(code)
    local dir = fio.tempdir()
    local script_path = fio.pathjoin(dir, 'script.lua')
    local script = fio.open(script_path, {'O_CREAT', 'O_WRONLY', 'O_APPEND'},
        tonumber('0777', 8))
    script:write(code)
    script:write("\nos.exit(0)")
    script:close()
    local cmd = [[/bin/sh -c 'cd "%s" && "%s" ./script.lua 2> /dev/null']]
    local res = os.execute(string.format(cmd, dir, tarantool_bin))
    fio.rmtree(dir)
    return res
end

--
-- gh-2872 bootstrap is aborted if vinyl_dir contains vylog files
-- left from previous runs
--
vinyl_dir = fio.tempdir()

run_script(string.format([[
box.cfg{vinyl_dir = '%s'}
s = box.schema.space.create('test', {engine = 'vinyl'})
s:create_index('pk')
os.exit(0)
]], vinyl_dir))

code = string.format([[
box.cfg{vinyl_dir = '%s'}
os.exit(0)
]], vinyl_dir)

test:is(run_script(code), PANIC, "bootstrap from non-empty vinyl_dir")
fio.rmtree(vinyl_dir)

test:check()
os.exit(0)

Run:
./test-run.py box-tap/cfg_gh-4594.test.lua

Optional (but very desirable):

• coredump
• backtrace
• netstat

[avtikhon]

Waiting sub-tasks at:
packpack/packpack#113
#4562