Used a fixed seed in Random#rand spec

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@59248 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

spec/rubyspec/core/random/rand_spec.rb

@@ -172,13 +172,13 @@ describe "Random#rand with Range" do
   end
 
   it "works with inclusive ranges" do
-    prng = Random.new
+    prng = Random.new 33
     r = 3..5
     40.times.map { prng.rand(r) }.uniq.sort.should == [3,4,5]
   end
 
   it "works with exclusive ranges" do
-    prng = Random.new
+    prng = Random.new 33
     r = 3...5
     20.times.map { prng.rand(r) }.uniq.sort.should == [3,4]
   end