querylog: imp code, docs

CHANGELOG.md

@@ -40,7 +40,7 @@ and this project adheres to
 
 ### Changed
 
-- Query log search is now supports internationalized domains ([#3012]).
+- Query log search now supports internationalized domains ([#3012]).
 - Internationalized domains are now shown decoded in the query log with the
   original encoded version shown in request details. ([#3013]).
 - When /etc/hosts-type rules have several IPs for one host, all IPs are now

internal/querylog/http.go

@@ -134,19 +134,16 @@ func (l *queryLog) parseSearchCriterion(q url.Values, name string, ct criterionT
 		return false, sc, nil
 	}
 
-	var strict bool
-	if getDoubleQuotesEnclosedValue(&val) {
-		strict = true
-	}
+	strict := getDoubleQuotesEnclosedValue(&val)
 
 	var asciiVal string
 	switch ct {
 	case ctTerm:
 		if asciiVal, err = idna.ToASCII(val); err != nil {
 			log.Debug("can't convert %q to ascii: %s", val, err)
 		} else if asciiVal == val {
-			// asciiVal is purged here to prevent checking the same
-			// value twice.
+			// Purge asciiVal to prevent checking the same value
+			// twice.
 			asciiVal = ""
 		}
 	case ctFilteringStatus:

internal/querylog/searchcriterion.go

@@ -12,8 +12,8 @@ type criterionType int
 
 const (
 	// ctTerm is for searching by the domain name, the client's IP address,
-	// the client's ID or the client's name.  The domain names are support
-	// internationalization.
+	// the client's ID or the client's name.  The domain name search
+	// supports IDNAs.
 	ctTerm criterionType = iota
 	// ctFilteringStatus is for searching by the filtering status.
 	//