FFI destroy object messages during chef run

[tas50]

You get the following messages during a Chef run with this gem:

         * windows_certificate[b1 bc 96 8b d4 f4 9d 62 2a a8 9a 81 f2 15 01 52 a4 1d 82 9c] action fetch

       Running handlers:
       Running handlers complete
       Chef Client finished, 10/36 resources updated in 01 minutes 07 seconds
       DESTROY OBJECT #<FFI::Pointer address=0x0000000000887100>
       DESTROY OBJECT #<FFI::Pointer address=0x0000000000887030>
       DESTROY OBJECT #<FFI::Pointer address=0x0000000000888070>
       DESTROY OBJECT #<FFI::Pointer address=0x0000000000887c60>
       DESTROY OBJECT #<FFI::Pointer address=0x0000000000887e00>
       DESTROY OBJECT #<FFI::Pointer address=0x00000000008b4910>
       DESTROY OBJECT #<FFI::Pointer address=0x00000000008b3320>
       DESTROY OBJECT #<FFI::Pointer address=0x00000000008b3c10>
       DESTROY OBJECT #<FFI::Pointer address=0x00000000008b5060>
       DESTROY OBJECT #<FFI::Pointer address=0x00000000008b39a0>
       DESTROY OBJECT #<FFI::Pointer address=0x00000000008b3730>
       DESTROY OBJECT #<FFI::Pointer address=0x00000000008b3a70>
       DESTROY OBJECT #<FFI::Pointer address=0x00000000008b46a0>
       DESTROY OBJECT #<FFI::Pointer address=0x00000000007f2450>
       DESTROY OBJECT #<FFI::Pointer address=0x00000000007f2930>
       DESTROY OBJECT #<FFI::Pointer address=0x00000000007f21e0>
       DESTROY OBJECT #<FFI::Pointer address=0x0000000000887510>
       DESTROY OBJECT #<FFI::Pointer address=0x0000000000887370>
       DESTROY OBJECT #<FFI::Pointer address=0x0000000000886e90>
       DESTROY OBJECT #<FFI::Pointer address=0x0000000000886dc0>
       DESTROY OBJECT #<FFI::Pointer address=0x0000000000886670>
       DESTROY OBJECT #<FFI::Pointer address=0x00000000008883b0>
       DESTROY OBJECT #<FFI::Pointer address=0x0000000000887920>
       DESTROY OBJECT #<FFI::Pointer address=0x00000000008864d0>
       DESTROY OBJECT #<FFI::Pointer address=0x00000000008868e0>
       DESTROY OBJECT #<FFI::Pointer address=0x00000000008871d0>
       Downloading files from <certificate-windows-2016>
       Finished converging <certificate-windows-2016> (7m50.68s).

[piyushawasthi]

Thanks @tas50, This issue fixed in PR: #31