is there any working example of how to use verify_hostname in command line?

[Edward Tsang]

Hi,

I am having a very  hard time to get the command line working.
Basically just trying to verify hostname via opoenssl command line:
openssl s_client  -CApath . -CAfile ./cacert.pem -verify_hostname
example.com

All I get is "unknown option -verify_hostname
usage: s_client args"

Have tried combinations of that and check out of doc... really not helping.

Openssl using:
openssl version
LibreSSL 2.8.3
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