* remove trailing spaces.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@42406 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

test/readline/test_readline.rb

@@ -322,7 +322,7 @@ class TestReadline < Test::Unit::TestCase
     assert_equal(5, Readline.point)
 
     assert_equal(4, Readline.point=(4))
-    
+
     Readline.insert_text('abc')
     assert_equal(7, Readline.point)