("color", "use VT100 color codes even when stdout is not a terminal")
#endif /* _WIN32 */
("define,D", po::value<std::vector<std::string> >(), "define a constant")
- ("app,a", po::value<std::vector<std::string> >(), "application library name (default: icinga)")
+ ("app,a", po::value<std::string>(), "application library name (default: icinga)")
("library,l", po::value<std::vector<std::string> >(), "load a library")
("include,I", po::value<std::vector<std::string> >(), "add include search directory")
("log-level,x", po::value<std::string>(), "specify the log level for the console log");