survey.*::
	These variables adjust the default behavior of the `git survey`
	command. The intention is that this command could be run in the
	background with these options.
+
--
	verbose::
		This boolean value implies the `--[no-]verbose` option.
	progress::
		This boolean value implies the `--[no-]progress` option.
	top::
		This integer value implies `--top=<N>`, specifying the
		number of entries in the detail tables.
--
