Cleanup whitespace

Author: lgebhardt

test/unit/serializer/link_builder_test.rb

@@ -130,7 +130,7 @@ def test_relationships_related_link_for_regular_app
 
     builder       = JSONAPI::LinkBuilder.new(config)
     source        = Api::V1::PersonResource.new(@steve)
-    relationship   = JSONAPI::Relationship::ToMany.new("posts", {})
+    relationship  = JSONAPI::Relationship::ToMany.new("posts", {})
     expected_link = "#{ @base_url }/api/v1/people/#{ @steve.id }/posts"
 
     assert_equal expected_link,