perl issue - Generic item

[keynet]

With perl 5.26, perhaps others, need to remove 'defined' in Generic item as below, and probably in other modules. Not 100% sure this fix is correct but not using get_fp_location, and need generic item to work!

sub get_fp_location {
    my ($self) = @_;
    #RF removed defined, perl 5.26 (leap 15)
#    if (! defined @{$$self{location}} ) { return }
    if (! @{$$self{location}} ) { return }
    return @{$$self{location}};
}