join result arrays for Ruby 1.9 compatibility

lib/mailer_tags.rb

@@ -99,6 +99,7 @@ def mailer_config(mailer_page=self)
     }
   }
 </script>)
+    results.flatten.join
   end
 
   desc %{
@@ -131,6 +132,7 @@ def mailer_config(mailer_page=self)
     else
       result = [%(<input onclick="showSubmitPlaceholder();" type="submit" value="#{value}" #{mailer_attrs(tag)} />)]
     end
+    result.flatten.join
   end
 
   desc %{
@@ -143,6 +145,7 @@ def mailer_config(mailer_page=self)
       results << render_part(:submit_placeholder)
       results << %Q(</div>)
     end
+    results.flatten.join
   end
 
   desc %{
@@ -228,7 +231,7 @@ def mailer_config(mailer_page=self)
           result << tag.expand
         end
     end
-    result
+    result.flatten.join
   end
 
   desc %{ 
@@ -378,10 +381,10 @@ def mailer_attrs(tag, extras={})
 
   def add_required(result, tag)
     result << %(<input type="hidden" name="mailer[required][#{tag.attr['name']}]" value="#{tag.attr['required']}" />) if tag.attr['required']
-    result
+    result.flatten.join
   end
 
   def raise_error_if_name_missing(tag_name, tag_attr)
     raise "`#{tag_name}' tag requires a `name' attribute" if tag_attr['name'].blank?
   end
-end
+end