https://gitlab.synchro.net/main/sbbs/-/merge_requests/303#note_3735

Yes, this is a configuration file that a sysop would edit with a text editor.  I do often use Notepad++, but have never seen an option to trim trailing whitespace; I'm not sure what option you're referring to and haven't had such a problem?
--- SBBSecho 3.20-Linux