(command.CommandList
  children: [
    (command.Simple
      words: [
        {<echo>}
        {
          (DQ <'fatal: git was built without support for '> 
            (command_sub
              left_token: <Id.Left_DollarParen '$('>
              command_list: 
                (command.CommandList
                  children: [(C {<basename>} {($ Id.VSub_Number '$0')})]
                )
            ) <' (@@REASON@@).'>
          )
        }
      ]
      redirects: [(redir.Redir op:<Id.Redir_GreatAnd '>&'> fd:-1 arg_word:{<2>})]
    )
    (command.ControlFlow token:<Id.ControlFlow_Exit exit> arg_word:{<128>})
  ]
)