all: Don't let Suture capture panics (fixes #4758) (#5119)

Fork with new option.

cmd/syncthing/gui_test.go

@@ -23,13 +23,13 @@ import (
 	"testing"
 	"time"
 
+	"github.com/calmh/suture"
 	"github.com/d4l3k/messagediff"
 	"github.com/syncthing/syncthing/lib/config"
 	"github.com/syncthing/syncthing/lib/events"
 	"github.com/syncthing/syncthing/lib/fs"
 	"github.com/syncthing/syncthing/lib/protocol"
 	"github.com/syncthing/syncthing/lib/sync"
-	"github.com/thejerf/suture"
 )
 
 func TestCSRFToken(t *testing.T) {
@@ -77,7 +77,9 @@ func TestStopAfterBrokenConfig(t *testing.T) {
 	srv := newAPIService(protocol.LocalDeviceID, w, "../../test/h1/https-cert.pem", "../../test/h1/https-key.pem", "", nil, nil, nil, nil, nil, nil, nil, nil)
 	srv.started = make(chan string)
 
-	sup := suture.NewSimple("test")
+	sup := suture.New("test", suture.Spec{
+		PanicPanics: true,
+	})
 	sup.Add(srv)
 	sup.ServeBackground()
 
@@ -487,7 +489,9 @@ func startHTTP(cfg *mockedConfig) (string, error) {
 	svc.started = addrChan
 
 	// Actually start the API service
-	supervisor := suture.NewSimple("API test")
+	supervisor := suture.New("API test", suture.Spec{
+		PanicPanics: true,
+	})
 	supervisor.Add(svc)
 	supervisor.ServeBackground()