[ruby-cvs:57340] nobu:r50191 (trunk): ignore rake load error

[nobu at ruby-lang.org]

nobu	2015-04-09 15:06:56 +0900 (Thu, 09 Apr 2015)

  New Revision: 50191

  http://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=revision&revision=50191

  Log:
    ignore rake load error
    
    rake is not available until installation now, so skip rake
    packagetask even if it cannot load until it is actually needed.

  Modified files:
    trunk/lib/rubygems/test_case.rb