Use 'require_relative' to load stdlib due to lookup errors

Author: david22swan

lib/puppet_x/stdlib/toml_dumper.rb

@@ -18,7 +18,7 @@
 # OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 # THE SOFTWARE.
 
-require 'puppet_x/stdlib'
+require_relative '../stdlib'
 require 'date'
 
 module PuppetX::Stdlib