rlm_perl without DynaLoader

[Alan DeKok]

Julius Plenz wrote:
> when using rlm_perl with a very simple Perl script that does *not* use
> DynaLoader to load some *.so files, upon thread exit, FreeRADIUS
> (current v2.x.x branch) throws errors:
> 
>     Error: Could not get @DynaLoader::dl_librefs for unloading.

  That shouldn't be an error.  I'll go fix that.

> Why is this an error case, rather than "no libs, no unloading
> necessary"?

  It's a minor bug.

  Alan DeKok.