rust/clippy: fix lint: never_loop

rust/src/dns/log.rs

@@ -512,10 +512,9 @@ fn dns_log_json_answer(js: &mut JsonBuilder, response: &DNSResponse, flags: u64)
         js.set_bool("z", true)?;
     }
 
-    for query in &response.queries {
+    if let Some(query) = response.queries.first() {
         js.set_string_from_bytes("rrname", &query.name)?;
         js.set_string("rrtype", &dns_rrtype_string(query.rrtype))?;
-        break;
     }
     js.set_string("rcode", &dns_rcode_string(header.flags))?;
 

rust/src/dns/lua.rs

@@ -42,12 +42,12 @@ pub extern "C" fn rs_dns_lua_get_rrname(clua: &mut CLuaState,
     };
 
     if let &Some(ref request) = &tx.request {
-        for query in &request.queries {
+        if let Some(query) = request.queries.first() {
             lua.pushstring(&String::from_utf8_lossy(&query.name));
             return 1;
         }
     } else if let &Some(ref response) = &tx.response {
-        for query in &response.queries {
+        if let Some(query) = response.queries.first() {
             lua.pushstring(&String::from_utf8_lossy(&query.name));
             return 1;
         }

rust/src/lib.rs

@@ -34,7 +34,6 @@
 #![allow(clippy::manual_find)]
 #![allow(clippy::match_like_matches_macro)]
 #![allow(clippy::module_inception)]
-#![allow(clippy::never_loop)]
 #![allow(clippy::new_without_default)]
 #![allow(clippy::redundant_pattern_matching)]
 #![allow(clippy::result_unit_err)]