set_value_spec.rb in ruby-mpfr-0.0.15

- old
+ new

@@ -1,5 +1,5 @@
-require File.expand_path(File.dirname(__FILE__)) + '/spec_helper.rb'
+require File.expand_path(File.join(File.dirname(__FILE__), "../spec_helper.rb"))
 
 MPFR.set_default_prec(300)
 
 describe MPFR, 'when setting abnormal number' do
   it "should be set nan" do