renmae because im too lazy to finish

cmd/pg-lockless-fifo-demo/main.go

@@ -115,7 +115,7 @@ func run(ctx context.Context) error {
 			return nil
 		}
 
-		pop := func() (any, error) {
+		peek := func() (any, error) {
 			curId, _, err := head()
 			if err != nil {
 				return nil, err
@@ -178,8 +178,8 @@ func run(ctx context.Context) error {
 		}
 
 		with.Every(ctx, time.Second, func() {
-			if _, err := pop(); err != nil {
-				log.Printf("failed pop: %v", err)
+			if _, err := peek(); err != nil {
+				log.Printf("failed peek: %v", err)
 			}
 		})