Extract inline_label to a method, tidy up

lib/simple_form/inputs/boolean_input.rb

@@ -3,7 +3,6 @@ module SimpleForm
     class BooleanInput < Base
       def input
         if nested_boolean_style?
-          inline_label = options[:inline_label] == true ? label_text : options[:inline_label]
           build_hidden_field_for_checkbox +
             template.label_tag(nil, :class => "checkbox") {
               build_check_box_without_hidden_field + inline_label
@@ -54,6 +53,11 @@ module SimpleForm
                               :disabled => input_html_options[:disabled])
       end
 
+      def inline_label
+        inline_label = options[:inline_label]
+        inline_label == true ? label_text : inline_label
+      end
+
       # Booleans are not required by default because in most of the cases
       # it makes no sense marking them as required. The only exception is
       # Terms of Use usually presented at most sites sign up screen.