english fix for 'Podfile does not contain any dependency'

lib/cocoapods/installer/user_project_integrator.rb

@@ -128,7 +128,7 @@ module Pod
       #
       def warn_about_empty_podfile
         if podfile.target_definitions.values.all?{ |td| td.empty? }
-          UI.warn "[!] The Podfile does not contain any dependency."
+          UI.warn "[!] The Podfile does not contain any dependencies."
         end
       end
 

spec/unit/installer/user_project_integrator_spec.rb

@@ -47,7 +47,7 @@ module Pod
         it "warns if the podfile does not contain any dependency" do
           Podfile::TargetDefinition.any_instance.stubs(:empty?).returns(true)
           @integrator.integrate!
-          UI.warnings.should.include?('The Podfile does not contain any dependency')
+          UI.warnings.should.include?('The Podfile does not contain any dependencies')
         end
 
       end