With systemd 237 syslog isn't starting properly:

https://autobuilder.yocto.io/builders/nightly-qa-extras/builds/883/steps/Running%20Sanity%20Tests_6/logs/stdio

NOTE: core-image-sato-1.0-r0 do_testimage: FAIL [0.346s]: test_syslog_startup_config (oe_syslog.SyslogTestConfig)
NOTE: core-image-sato-1.0-r0 do_testimage: ----------------------------------------------------------------------
NOTE: core-image-sato-1.0-r0 do_testimage: Traceback (most recent call last):
  File "/home/pokybuild/yocto-autobuilder/yocto-worker/nightly-qa-extras/build/meta/lib/oeqa/core/decorator/__init__.py", line 32, in wrapped_f
    return func(*args, **kwargs)
  File "/home/pokybuild/yocto-autobuilder/yocto-worker/nightly-qa-extras/build/meta/lib/oeqa/core/decorator/__init__.py", line 32, in wrapped_f
    return func(*args, **kwargs)
  File "/home/pokybuild/yocto-autobuilder/yocto-worker/nightly-qa-extras/build/meta/lib/oeqa/core/decorator/__init__.py", line 32, in wrapped_f
    return func(*args, **kwargs)
  File "/home/pokybuild/yocto-autobuilder/yocto-worker/nightly-qa-extras/build/meta/lib/oeqa/core/decorator/__init__.py", line 32, in wrapped_f
    return func(*args, **kwargs)
  File "/home/pokybuild/yocto-autobuilder/yocto-worker/nightly-qa-extras/build/meta/lib/oeqa/runtime/cases/oe_syslog.py", line 57, in test_syslog_startup_config
    self.assertEqual(status, 0, msg)
AssertionError: 1 != 0 : Could not restart syslog service. Status and output: 1 and Stopping syslogd/klogd: stopped syslogd (pid 829)
no klogd found; none killed