Prevent outer local variable shadowing

test/collection_test.rb

@@ -373,8 +373,8 @@ class TestCollection < Test::Unit::TestCase
 
     docs = [{"hello" => "world"}, {"hello" => "world"}]
     @@test.insert(docs)
-    docs.each do |doc|
-      assert(doc.include?(:_id))
+    docs.each do |d|
+      assert(d.include?(:_id))
     end
   end
 

test/cursor_test.rb

@@ -171,8 +171,8 @@ class CursorTest < Test::Unit::TestCase
     cursor = Cursor.new(@@coll, :timeout => false)
     assert_equal false, cursor.timeout
 
-    @@coll.find({}, :timeout => false) do |cursor|
-      assert_equal false, cursor.timeout
+    @@coll.find({}, :timeout => false) do |c|
+      assert_equal false, c.timeout
     end
   end