Description
There is some telemetry related error log in the syslog, it can be observed from time to time, it can be observed in 201911 version, e.g.; SONiC.HEAD.36-f197f0d2

'Feb 12 15:59:56.809685 arc-switch1038 INFO telemetry#supervisord: start.sh dialout: ERROR (abnormal termination)\n

Steps to reproduce the issue:

1. not exactly know how to reproduce it but can observe it from time to time

Describe the results you received:
error log found

Describe the results you expected:
the log should be clean and w/o error.

Additional information you deem important (e.g. issue happens only occasionally):

**Output of `show version`:**

```
(paste your output here)
```

**Attach debug file `sudo generate_dump`:**

```
(paste your output here)
```