Minor fixup

cmd/syncthing/main.go

@@ -151,6 +151,7 @@ are mostly useful for developers. Use with care.
                  - "events"   (the events package)
                  - "files"    (the files package)
                  - "http"     (the main package; HTTP requests)
+                 - "locks"    (the sync package; trace long held locks)
                  - "net"      (the main package; connections & network messages)
                  - "model"    (the model package)
                  - "scanner"  (the scanner package)

internal/sync/sync_test.go

@@ -16,6 +16,8 @@ import (
 )
 
 func TestTypes(t *testing.T) {
+	debug = false
+
 	if _, ok := NewMutex().(*sync.Mutex); !ok {
 		t.Error("Wrong type")
 	}