Fix tests for pt-heartbeat

$ prove -vw --trap --timer t/pt-heartbeat/
[17:48:39] t/pt-heartbeat/basics.t ............... 
ok 1 - Dies on empty heartbeat table with --check (issue 45)
ok 2 - Dies on empty heartbeat table with --monitor (issue 45)
ok 3 - Automatically inserts heartbeat row (issue 1292)
ok 4 - Record is there
ok 5 - Output is just a number
not ok 6 - It is running

#   Failed test 'It is running'
#   at t/pt-heartbeat/basics.t line 108.
#                   ''
#     doesn't match '(?^:/home/sveta/src/percona-toolkit/bin/pt-heartbeat -F /tmp/12345/my.sandbox.cnf )'
not ok 7 - PID file created

#   Failed test 'PID file created'
#   at t/pt-heartbeat/basics.t line 109.
not ok 8 - PID file has correct PID

#   Failed test 'PID file has correct PID'
#   at t/pt-heartbeat/basics.t line 112.
#          got: ''
#     expected: undef
not ok 9 - It is being updated

#   Failed test 'It is being updated'
#   at t/pt-heartbeat/basics.t line 120.
#          got: '  00s [  0.00s,  0.00s,  0.00s ]'
#     expected: '   0s [  0.00s,  0.00s,  0.00s ]'
ok 10 - It is not running anymore
ok 11 - PID file removed
not ok 12 - It is running

#   Failed test 'It is running'
#   at t/pt-heartbeat/basics.t line 135.
#                   ''
#     doesn't match '(?^:/home/sveta/src/percona-toolkit/bin/pt-heartbeat -F /tmp/12345/my.sandbox.cnf )'
ok 13 - Created sentinel
ok 14 - It is not running
ok 15 - Sentinel file is there
ok 16 - --create-table creates heartbeat table
ok 17 - --create-table-engine creates heartbeat table using a non-default engine
ok 18 - --check output has :port
ok 19 - Heartbeat on master
ok 20 - Heartbeat on slave1
ok 21 - New heartbeat on master
ok 22 - No slave error
ok 23 - By default, fails if the server is read_only=1
ok 24 - ...but just skips doing any work and waits if --check-read-only was specified
ok 25 - Sandbox servers
1..25
# Looks like you failed 5 tests of 25.
Dubious, test returned 5 (wstat 1280, 0x500)
Failed 5/25 subtests 
[17:49:29] t/pt-heartbeat/check_schema_exists.t .. 
ok 1 - Sandbox servers
1..1
ok      912 ms ( 0.00 usr  0.00 sys +  0.28 cusr  0.12 csys =  0.40 CPU)
[17:49:30] t/pt-heartbeat/multi_update_mode.t .... 
1..29
Can't locate object method "daemonize" via package "Daemon" at /home/sveta/src/percona-toolkit/bin/pt-heartbeat line 6375.
not ok 1 - --update on 12345 started

#   Failed test '--update on 12345 started'
#   at t/pt-heartbeat/multi_update_mode.t line 57.
Can't locate object method "daemonize" via package "Daemon" at /home/sveta/src/percona-toolkit/bin/pt-heartbeat line 6375.
not ok 2 - --update on 12346 started

#   Failed test '--update on 12346 started'
#   at t/pt-heartbeat/multi_update_mode.t line 57.
Can't locate object method "daemonize" via package "Daemon" at /home/sveta/src/percona-toolkit/bin/pt-heartbeat line 6375.
not ok 3 - --update on 12347 started

#   Failed test '--update on 12347 started'
#   at t/pt-heartbeat/multi_update_mode.t line 57.
ok 4 - One heartbeat row on master
ok 5 - Master heartbeat
ok 6 - Master file and position
ok 7 - No relay_master_log_file or exec_master_log_pos for master
ok 8 - Two heartbeat rows on slave1
ok 9 - Slave1 has master heartbeat
ok 10 - Slave1 heartbeat
ok 11 - Slave1 master file and position
ok 12 - Slave1 relay_master_log_file and exec_master_log_pos for master
ok 13 - Three heartbeat rows on slave2
ok 14 - Slave2 has master heartbeat
ok 15 - Slave2 has slave1 heartbeat
ok 16 - Slave1 heartbeat
ok 17 - Slave2 master file and position
ok 18 - Slave2 relay_master_log_file and exec_master_log_pos for master
not ok 19 - Master heartbeat ts is changing and replicating

#   Failed test 'Master heartbeat ts is changing and replicating'
#   at t/pt-heartbeat/multi_update_mode.t line 163.
#     '2022-12-29T17:49:31.440770'
#         gt
#     '2022-12-29T17:49:31.440770'
not ok 20 - Master binlog position is changing and replicating

#   Failed test 'Master binlog position is changing and replicating'
#   at t/pt-heartbeat/multi_update_mode.t line 170.
#     '4605083'
#         >
#     '4605083'
ok 21 - Master binlog file is not changing
ok 22 - --check 12347, automatic master server_id
not ok 23 - --check 12347 from --master-server-id 12346

#   Failed test '--check 12347 from --master-server-id 12346'
#   at t/pt-heartbeat/multi_update_mode.t line 203.
#                   '71.20 12346
# '
#     doesn't match '(?^:0\.\d\d\s+12346\n)'
not ok 24 - --check 12347 from --master-server-id 12345

#   Failed test '--check 12347 from --master-server-id 12345'
#   at t/pt-heartbeat/multi_update_mode.t line 215.
#                   '102.56 12345
# '
#     doesn't match '(?^:0\.\d\d\s+12345\n)'
ok 25 - Error if --master-server-id row doesn't exist
ok 26 - --update on 12345 stopped
ok 27 - --update on 12346 stopped
ok 28 - --update on 12347 stopped
ok 29 - Sandbox servers
# Looks like you failed 7 tests of 29.
Dubious, test returned 7 (wstat 1792, 0x700)
Failed 7/29 subtests 
[17:51:19] t/pt-heartbeat/pt-1508.t .............. 
1..2
Sleeping 4 seconds at t/pt-heartbeat/pt-1508.t line 50.
# Thread started
ok 1 - PT-1508 --read-only-interval
ok 2 - Sandbox servers
ok     9450 ms ( 0.00 usr  0.00 sys +  0.47 cusr  0.23 csys =  0.70 CPU)
[17:51:28] t/pt-heartbeat/pt-1857.t .............. 
1..2
ok 1 - PT-1508 --read-only-interval
ok 2 - Sandbox servers
ok     7262 ms ( 0.00 usr  0.00 sys +  0.47 cusr  0.22 csys =  0.69 CPU)
[17:51:36] t/pt-heartbeat/pxc.t .................. 
1..0 # SKIP PXC tests
skipped: PXC tests
[17:51:36] t/pt-heartbeat/standard_options.t ..... 
1..2
not ok 1 - Dies if PID file already exists (--pid without --daemonize) (issue 391)

#   Failed test 'Dies if PID file already exists (--pid without --daemonize) (issue 391)'
#   at t/pt-heartbeat/standard_options.t line 43.
#                   'Can't locate object method "make_PID_file" via package "Daemon" at /home/sveta/src/percona-toolkit/bin/pt-heartbeat line 6381.
# '
#     doesn't match '(?^:PID file /tmp/mk-script.pid already exists)'
ok 2 - Sandbox servers
# Looks like you failed 1 test of 2.
Dubious, test returned 1 (wstat 256, 0x100)
Failed 1/2 subtests 
[17:51:37] t/pt-heartbeat/utc.t .................. tempfile(): temporary filename requested but not opened.
Possibly unsafe, consider using tempfile() with OPEN set to true
Can't locate object method "make_PID_file" via package "Daemon" at /home/sveta/src/percona-toolkit/bin/pt-heartbeat line 6381.

not ok 1 - --update on 12345 started

#   Failed test '--update on 12345 started'
#   at t/pt-heartbeat/utc.t line 64.
not ok 2 - --utc bypasses time zone differences (bug 886059, bug 1099665)

#   Failed test '--utc bypasses time zone differences (bug 886059, bug 1099665)'
#   at t/pt-heartbeat/utc.t line 102.
#                   '31.03
# '
#     doesn't match '(?^:\A\d.\d{2}$)'
Cannot open /tmp/pt-heartbeat-test.Xj05JhQ9.12345.pid: No such file or directory at t/pt-heartbeat/utc.t line 71.
# Tests were run but no plan was declared and done_testing() was not seen.
# Looks like your test exited with 2 just after 2.
Dubious, test returned 2 (wstat 512, 0x200)
Failed 2/2 subtests 
[17:52:09]

Test Summary Report
-------------------
t/pt-heartbeat/basics.t             (Wstat: 1280 Tests: 25 Failed: 5)
  Failed tests:  6-9, 12
  Non-zero exit status: 5
t/pt-heartbeat/multi_update_mode.t  (Wstat: 1792 Tests: 29 Failed: 7)
  Failed tests:  1-3, 19-20, 23-24
  Non-zero exit status: 7
t/pt-heartbeat/standard_options.t   (Wstat: 256 Tests: 2 Failed: 1)
  Failed test:  1
  Non-zero exit status: 1
t/pt-heartbeat/utc.t                (Wstat: 512 Tests: 2 Failed: 2)
  Failed tests:  1-2
  Non-zero exit status: 2
  Parse errors: No plan found in TAP output
Files=8, Tests=63, 210 wallclock secs ( 0.05 usr  0.01 sys +  3.97 cusr  1.41 csys =  5.44 CPU)
Result: FAIL