- @opt_enableextras = split /[, ]+/, join(',', @opt_enableextras);
- @opt_disableextras = split /[, ]+/, join(',', @opt_disableextras);
+ @opt_enableextras = grep { /\S/ } split /[, ]+/, join(',', @opt_enableextras);
+ @opt_disableextras = grep { /\S/ } split /[, ]+/, join(',', @opt_disableextras);