Updates for keyword arguments.

Gemfile

@@ -20,7 +20,7 @@ end
 group :debug do
   gem 'shotgun'
   gem "wirble"
-  gem "byebug", platforms: [:mri_20, :mri_21]
+  gem "byebug", platforms: :mri
 end
 
 platforms :rbx do

Gemfile-pure

@@ -19,7 +19,7 @@ end
 group :debug do
   gem 'shotgun'
   gem "wirble"
-  gem "byebug", platforms: [:mri_20, :mri_21]
+  gem "byebug", platforms: :mri
 end
 
 platforms :rbx do

lib/sparql/client/query.rb

@@ -354,12 +354,7 @@ def expects_statements?
     ##
     # @private
     def build_patterns(patterns)
-      patterns.map do |pattern|
-        case pattern
-          when RDF::Query::Pattern then pattern
-          else RDF::Query::Pattern.new(*pattern.to_a)
-        end
-      end
+      patterns.map {|pattern| RDF::Query::Pattern.from(pattern)}
     end
 
     ##

spec/client_spec.rb

@@ -265,7 +265,9 @@ def response(header)
 
     describe "#query" do
       it "raises error on malformed query" do
-        expect {subject.query("Invalid SPARQL")}.to raise_error(SPARQL::MalformedQuery)
+        expect do
+          expect {subject.query("Invalid SPARQL")}.to raise_error(SPARQL::MalformedQuery)
+        end.to write("ERROR").to(:error)
       end
     end
   end