+ case 'o':
+ if ((propval = strchr(optarg, '=')) == NULL) {
+ (void) fprintf(stderr, gettext("missing "
+ "'=' for -o option\n"));
+ usage(B_FALSE);
+ }
+ *propval = '\0';
+ propval++;
+
+ if ((strcmp(optarg, ZPOOL_CONFIG_ASHIFT) != 0) ||
+ (add_prop_list(optarg, propval, &props, B_TRUE)))
+ usage(B_FALSE);
+ break;