Add -nocommands to s_client.
Add -nocommands to s_client.

Add flag to disable the 'command letters' from s_client.

Reviewed-by: Richard Levitte <5fb523282dd7956571c80524edc2dccfa0bd8234@openssl.org>

openssl/openssl,openssl/openssl,openssl/openssl,openssl/openssl,openssl/openssl,openssl/openssl