ntdll/tests: Add a trailing '\n' to an ok() call.

dlls/ntdll/tests/file.c

@@ -1506,7 +1506,7 @@ todo_wine
     ok(ffvi->VolumeSerialNumber != 0, "Missing VolumeSerialNumber\n");
     ok(ffvi->SupportsObjects == 1,"expected 1, got %d\n", ffvi->SupportsObjects);
 }
-    ok(ffvi->VolumeLabelLength == lstrlenW(ffvi->VolumeLabel) * sizeof(WCHAR), "expected %d, got %d",
+    ok(ffvi->VolumeLabelLength == lstrlenW(ffvi->VolumeLabel) * sizeof(WCHAR), "expected %d, got %d\n",
     lstrlenW(ffvi->VolumeLabel) * sizeof(WCHAR), ffvi->VolumeLabelLength);
 
     trace("VolumeSerialNumber: %x VolumeLabelName: %s\n", ffvi->VolumeSerialNumber, wine_dbgstr_w(ffvi->VolumeLabel));