naruse	2013-11-06 15:23:27 +0900 (Wed, 06 Nov 2013)

  New Revision: 43551

  http://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=rev&revision=43551

  Log:
    Suppress Warnings: instance variable @installed_by_version not initialized

  Modified files:
    trunk/lib/rubygems/specification.rb
Index: lib/rubygems/specification.rb
===================================================================
--- lib/rubygems/specification.rb	(revision 43550)
+++ lib/rubygems/specification.rb	(revision 43551)
@@ -2293,7 +2293,7 @@ class Gem::Specification < Gem::BasicSpe https://github.com/ruby/ruby/blob/trunk/lib/rubygems/specification.rb#L2293
       end
     end
 
-    if @installed_by_version then
+    if defined?(@installed_by_version) && @installed_by_version then
       result << nil
       result << "  s.installed_by_version = \"#{Gem::VERSION}\""
     end

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