import { gdefault } from "https://deno.land/x/denops_std@v3.10.1/option/mod.ts";
When on, the ":substitute" flag 'g' is default on. This means that all matches in a line are substituted instead of one. When a 'g' flag is given to a ":substitute" command, this will toggle the substitution of all or one match. See |complex-change|.