Ignore rexml examples on ruby/spec

Merged: https://github.com/ruby/ruby/pull/2832

spec/ruby/library/rexml/element/add_attribute_spec.rb

@@ -1,41 +1,44 @@
-require 'rexml/document'
 require_relative '../../../spec_helper'
 
-describe "REXML::Element#add_attribute" do
-  before :each do
-    @person = REXML::Element.new "person"
-    @person.attributes["name"] = "Bill"
-  end
+ruby_version_is ''...'2.8' do
+  require 'rexml/document'
 
-  it "adds a new attribute" do
-    @person.add_attribute("age", "17")
-    @person.attributes["age"].should == "17"
-  end
+  describe "REXML::Element#add_attribute" do
+    before :each do
+      @person = REXML::Element.new "person"
+      @person.attributes["name"] = "Bill"
+    end
 
-  it "overwrites an existing attribute" do
-    @person.add_attribute("name", "Bill")
-    @person.attributes["name"].should == "Bill"
-  end
+    it "adds a new attribute" do
+      @person.add_attribute("age", "17")
+      @person.attributes["age"].should == "17"
+    end
 
-  it "accepts a pair of strings" do
-    @person.add_attribute("male", "true")
-    @person.attributes["male"].should == "true"
-  end
+    it "overwrites an existing attribute" do
+      @person.add_attribute("name", "Bill")
+      @person.attributes["name"].should == "Bill"
+    end
 
-  it "accepts an Attribute for key" do
-    attr = REXML::Attribute.new("male", "true")
-    @person.add_attribute attr
-    @person.attributes["male"].should == "true"
-  end
+    it "accepts a pair of strings" do
+      @person.add_attribute("male", "true")
+      @person.attributes["male"].should == "true"
+    end
 
-  it "ignores value if key is an Attribute" do
-    attr = REXML::Attribute.new("male", "true")
-    @person.add_attribute(attr, "false")
-    @person.attributes["male"].should == "true"
-  end
+    it "accepts an Attribute for key" do
+      attr = REXML::Attribute.new("male", "true")
+      @person.add_attribute attr
+      @person.attributes["male"].should == "true"
+    end
 
-  it "returns the attribute added" do
-    attr = REXML::Attribute.new("name", "Tony")
-    @person.add_attribute(attr).should == attr
+    it "ignores value if key is an Attribute" do
+      attr = REXML::Attribute.new("male", "true")
+      @person.add_attribute(attr, "false")
+      @person.attributes["male"].should == "true"
+    end
+
+    it "returns the attribute added" do
+      attr = REXML::Attribute.new("name", "Tony")
+      @person.add_attribute(attr).should == attr
+    end
   end
 end