372   std::string Description =  in emitOption()  local
376     if (!Description.empty() && Description.back() != '.')  in emitOption()
377       Description.push_back('.');  in emitOption()
387     Description += (" " + MetaVarName + " must be '").str();  in emitOption()
389       Description += join(Values.begin(), Values.end() - 1, "', '");  in emitOption()
390       Description += "' or '";  in emitOption()
392     Description += (Values.back() + "'.").str();  in emitOption()
395   if (!Description.empty())  in emitOption()
396     OS << Description << "\n\n";  in emitOption()
414   std::string Description =  in emitGroup()  local
416   if (!Description.empty())  in emitGroup()
417     OS << Description << "\n\n";  in emitGroup()