test_dns.rb: test name

* test/resolv/test_dns.rb (TestResolvDNS#test_dots_diffences): fix
  test name.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@49072 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

test/resolv/test_dns.rb

@@ -178,7 +178,7 @@ class TestResolvDNS < Test::Unit::TestCase
     end
   end
 
-  def test_case_insensitive_name
+  def test_dots_diffences
     name1 = Resolv::DNS::Name.create("example.org")
     name2 = Resolv::DNS::Name.create("ex.ampl.eo.rg")
     assert_not_equal(name1, name2, "different dots")