* lib/rdoc/generator/pot/po.rb: fixed broken tests for trailing whitespace.
* test/rdoc/test_rdoc_generator_pot.rb: ditto.
* test/rdoc/test_rdoc_generator_pot_po.rb: ditto.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@47395 b2dd03c8-39d4-4d8f-98ff-823fe69b080e