Simplify loops to copy (#19569)

- Simplify two loops into `copy` statements.

modules/setting/log.go

@@ -32,9 +32,8 @@ func GetLogDescriptions() map[string]*LogDescription {
 	descs := make(map[string]*LogDescription, len(logDescriptions))
 	for k, v := range logDescriptions {
 		subLogDescriptions := make([]SubLogDescription, len(v.SubLogDescriptions))
-		for i, s := range v.SubLogDescriptions {
-			subLogDescriptions[i] = s
-		}
+		copy(subLogDescriptions, v.SubLogDescriptions)
+
 		descs[k] = &LogDescription{
 			Name:               v.Name,
 			SubLogDescriptions: subLogDescriptions,

routers/api/v1/repo/language.go

@@ -76,9 +76,7 @@ func GetLanguages(ctx *context.APIContext) {
 	}
 
 	resp := make(languageResponse, len(langs))
-	for i, v := range langs {
-		resp[i] = v
-	}
+	copy(resp, langs)
 
 	ctx.JSON(http.StatusOK, resp)
 }