Where to look for sitemap.xml settings in DLE?

Question

DLE

If you open the map with a browser, for example, it will be the following:
site.ru/nash-esche-odin-proekt .html (space before the extension)
I open uploads/sitemap.xml in the editor - everything is ok
Most likely the file that processes the map adds an extra character. Where to see?
DataLife Engine version: 10.1
PS please do not even advise updating

Answer 1

the corresponding function in google.class.php is this (did not change):
notepad.cc/coftaso51