-the given value. If both this option and the B<-noservername> are not given, the
-TLS SNI extension is still set to the hostname provided to the B<-connect> option,
-or "localhost" if B<-connect> has not been supplied. This is default since OpenSSL
-1.1.1.
+the given value.
+If B<-servername> is not provided, the TLS SNI extension will be populated with
+the name given to B<-connect> if it follows a DNS name format. If B<-connect> is
+not provided either, the SNI is set to "localhost".
+This is the default since OpenSSL 1.1.1.