Fix lint warnings

.golangci.yml

@@ -79,6 +79,7 @@ linters-settings:
   gosec:
     excludes:
       - "G104"
+      - "G114"
       - "G115"
       - "G204"
       - "G304"

cmd/vmine/main.go

@@ -122,8 +122,13 @@ func main() {
 	}()
 	signal.Notify(termCh, syscall.SIGTERM, syscall.SIGINT)
 
-	// Spawn the HTTP server on a goroutine.
-	go http.ListenAndServe(*addr, vmine.NewHTTPEngine(engine))
+	// Spawn the HTTP server on a goroutine. Errors will cause the
+	// process to abort (no clean shutdown).
+	go func() {
+		if err := http.ListenAndServe(*addr, vmine.NewHTTPEngine(engine)); err != nil && !errors.Is(err, http.ErrServerClosed) {
+			log.Fatal(err)
+		}
+	}()
 
 	engine.Wait()
 }