Remove support for obsolete TLS v1

Author: ioannidesalex

install/deb/vsftpd/vsftpd.conf

@@ -32,7 +32,7 @@ ssl_enable=YES
 allow_anon_ssl=NO
 require_ssl_reuse=NO
 ssl_ciphers=HIGH
-ssl_tlsv1=YES
+ssl_tlsv1=NO
 ssl_sslv2=NO
 ssl_sslv3=NO
 force_local_data_ssl=NO