Removed obsolete names

spec/ruby/library/etc/getgrgid_spec.rb

@@ -46,13 +46,6 @@ platform_is_not :windows do
         gr.name.should == @name
       end
 
-      it "returns the Group for a given gid if it exists" do
-        grp = Etc.getgrgid(@gid)
-        grp.should be_kind_of(Struct::Group)
-        grp.gid.should == @gid
-        grp.name.should == @name
-      end
-
       it "raises if the group does not exist" do
         -> { Etc.getgrgid(9876)}.should raise_error(ArgumentError)
       end

spec/ruby/library/etc/struct_group_spec.rb

@@ -1,7 +1,7 @@
 require_relative '../../spec_helper'
 require 'etc'
 
-describe "Struct::Group" do
+describe "Etc::Group" do
   platform_is_not :windows do
     grpname = IO.popen(%w'id -gn', err: IO::NULL, &:read)
     next unless $?.success?

spec/ruby/library/etc/struct_passwd_spec.rb

@@ -1,7 +1,7 @@
 require_relative '../../spec_helper'
 require 'etc'
 
-describe "Struct::Passwd" do
+describe "Etc::Passwd" do
   platform_is_not :windows do
     before :all do
       @pw = Etc.getpwuid(`id -u`.strip.to_i)