e_orig
brace_subst(plan->e_orig[cnt],
new->e_orig = ereallocarray(NULL, cnt, sizeof(char *));
new->e_orig[cnt] = *argv;
new->e_orig[cnt] = NULL;
brace_subst(plan->e_orig[cnt], &plan->e_argv[cnt],
new->e_orig = ereallocarray(NULL, cnt, sizeof(char *));
new->e_orig[cnt] = *argv;
new->e_argv[cnt] = new->e_orig[cnt] = NULL;