Issue11: null context causing indentation crash

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@5742 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

lib/rexml/node.rb

@@ -25,7 +25,7 @@ module REXML
 		end
 
 		def indent to, ind
- 			if @parent and not @parent.context[:indentstyle].nil? then
+ 			if @parent and @parent.context and not @parent.context[:indentstyle].nil? then
  				indentstyle = @parent.context[:indentstyle]
  			else
  				indentstyle = '  '

lib/rexml/rexml.rb

@@ -22,5 +22,5 @@
 module REXML
 	Copyright = "Copyright #{Time.now.year} Sean Russell <ser@germane-software.com>"
 	Date = "+2004/047"
-	Version = "2.7.4.1"
+	Version = "2.7.4.2"
 end