one last native type to ruby conversion
one last native type to ruby conversion

fixes rbx

h4ck3rm1k3/ffi-yajl,kou/ffi-yajl,kou/ffi-yajl,h4ck3rm1k3/ffi-yajl,h4ck3rm1k3/ffi-yajl,chef/ffi-yajl,chef/ffi-yajl,chef/ffi-yajl,kou/ffi-yajl