`unsorted_string_list_has_string` and get it from the list using
`string_list_lookup` for sorted lists.
-. Can sort an unsorted list using `sort_string_list`.
+. Can sort an unsorted list using `string_list_sort`.
. Can remove duplicate items from a sorted list using
`string_list_remove_duplicates`.
ownership of a malloc()ed string to a `string_list` that has
`strdup_string` set.
-`sort_string_list`::
+`string_list_sort`::
Sort the list's entries by string value in `strcmp()` order.