Calling Popen with a result of util::split doesn't compile

[klosworks]

It would not be a stretch to expect this:

    auto proc = Popen(subprocess::util::split(command), error{PIPE}, cwd{where});

to compile.
Unfortunately it gives the following error:

/home/pklos/projects/(...).cpp:70:80: error: no matching function for call to ‘subprocess::Popen::Popen(std::vector<std::__cxx11::basic_string<char> >, subprocess::error, subprocess::cwd)’
     auto proc = Popen(subprocess::util::split(command), error{PIPE}, cwd{where});

I don't see another equivalent of python shlex.split in your library.