(command.CommandList
  children: [
    (command.Simple
      blame_tok: <echo>
      more_env: []
      words: [
        {<echo>}
        {
          (DQ <'fatal: git was built without support for '> 
            (CommandSub
              left_token: <Id.Left_DollarParen '$('>
              child: 
                (command.Simple
                  blame_tok: <basename>
                  more_env: []
                  words: [{<basename>} {($ Id.VSub_Number 0)}]
                  redirects: []
                  do_fork: T
                )
              right: <Id.Eof_RParen _>
            ) <' (@@REASON@@).'>
          )
        }
      ]
      redirects: [(Redir op:<Id.Redir_GreatAnd '>&'> loc:(redir_loc.Fd fd:1) arg:{<2>})]
      do_fork: T
    )
    (command.ControlFlow keyword:<Id.ControlFlow_Exit exit> arg_word:{<128>})
  ]
)