space inserted into css class by formencode / hmtlfill 1.2.1

Hi,

I am very green with form encode, so please bear with me. First of all -
thanks, it's a great tool. It's making my life much easier :).

When it's validating my fields it's appending 'error' onto the fields CSS
class as expected, but seems to be putting a space in between which is not
so hot.

Ie. <input class='form'.. becomes <input class='form error'.. after
htmlfill.

This is within a pylons project, but I'm unsure what more material I should
provide for any help with this.

Many thanks,

Jules



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