fix: prevent graceful shutdown message on normal exit (#9244)

cmd/trivy/main.go

@@ -42,8 +42,7 @@ func run() error {
 	}
 
 	// Set up signal handling for graceful shutdown
-	ctx, stop := commands.NotifyContext(context.Background())
-	defer stop()
+	ctx := commands.NotifyContext(context.Background())
 
 	app := commands.NewApp()
 	return app.ExecuteContext(ctx)

pkg/commands/signal.go

@@ -15,7 +15,7 @@ import (
 // When a signal is received, Trivy will attempt to gracefully shut down by canceling
 // the context and waiting for all operations to complete. If users want to force an
 // immediate exit, they can send a second SIGINT or SIGTERM signal.
-func NotifyContext(parent context.Context) (context.Context, context.CancelFunc) {
+func NotifyContext(parent context.Context) context.Context {
 	ctx, stop := signal.NotifyContext(parent, os.Interrupt, syscall.SIGTERM)
 
 	// Start a goroutine to handle cleanup when context is done
@@ -33,5 +33,5 @@ func NotifyContext(parent context.Context) (context.Context, context.CancelFunc)
 		stop()
 	}()
 
-	return ctx, stop
+	return ctx
 }