• Removed redundant/incorrect len variable in substrWithAttrCodes() in d

    From Eric Oulashin@VERT to GitLab note in main/sbbs on Fri Oct 6 16:39:32 2023
    https://gitlab.synchro.net/main/sbbs/-/merge_requests/340#note_4284

    It seems more changes need to be made before merging

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