* lib/rexml/text.rb (REXML::Text#<<): Support method chain use by "<<"
  like other objects.
* test/rexml/test_text.rb (TextTester#test_shift_operator_chain):
  Add a test for the above case.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@41818 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* lib/rexml/text.rb (REXML::Text#<<): Support appending in not
  "raw" mode. [Bug #8602] [ruby-dev:47482]
  Reported by Ippei Obayashi. Thanks!!!
* test/rexml/test_text.rb (TextTester#test_shift_operator_cache):
  Add a test for the above case.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@41819 b2dd03c8-39d4-4d8f-98ff-823fe69b080e