* lib/rdoc/ri/paths.rb (RDoc::RI::Paths.each): HOMEDIR can be nil

if $HOME is unset.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@29272 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

ChangeLog

@@ -1,3 +1,8 @@
+Thu Sep 16 21:02:30 2010  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* lib/rdoc/ri/paths.rb (RDoc::RI::Paths.each): HOMEDIR can be nil
+	  if $HOME is unset.
+
 Thu Sep 16 20:16:07 2010  Akinori MUSHA  <knu@iDaemons.org>
 
 	* LEGAL: Rephrase the leading sentences for clarification.  Avoid

lib/rdoc/ri/paths.rb

@@ -26,7 +26,7 @@ module RDoc::RI::Paths
   #           true
   # :site:: Where ri for installed libraries are stored.  Yielded when
   #         +site+ is true.  Normally no ri data is stored here.
-  # :home:: ~/.ri.  Yielded when +home+ is true.
+  # :home:: ~/.rdoc.  Yielded when +home+ is true.
   # :gem:: ri data for an installed gem.  Yielded when +gems+ is true.
   # :extra:: ri data directory from the command line.  Yielded for each
   #          entry in +extra_dirs+
@@ -38,7 +38,7 @@ module RDoc::RI::Paths
 
     yield SYSDIR,  :system if system
     yield SITEDIR, :site   if site
-    yield HOMEDIR, :home   if home
+    yield HOMEDIR, :home   if home and HOMEDIR
 
     gemdirs.each do |dir|
       yield dir, :gem