dnscrypt-proxy.toml: enable require_nolog

Learning that I don't have to specify servers there is a lot more
variety even if I start requiring more things, as Sedric says to
see 33 live servers, I guess dnscrypt servers in general respect
privacy. However I guess I still have to trust on what the servers
say as AFAIK dnscrypt-proxy is only that, a proxy, and won't start
validating dnssec by itself.

etc/dnscrypt-proxy/dnscrypt-proxy.toml

@@ -18,6 +18,7 @@ ipv6_servers = true
 block_ipv6 = false
 require_dnssec = true
 require_nofilter = true
+require_nolog = true
 
 # Use Google DNS B for resolving the server_names[] if the system
 # resolver is broken (which it is for me as it points directly to