Man pages matching name ppix::editortools::findunmatchedbrace in section 3pm:

PPIx::EditorTools::FindUnmatchedBrace.3pm.en	debian 10 / libppix-editortools-perl
PPIx::EditorTools::FindUnmatchedBrace.3pm.en	debian 11 / libppix-editortools-perl
PPIx::EditorTools::FindUnmatchedBrace.3pm.en	debian 12 / libppix-editortools-perl