Term name needs trimming.

In production use, we had problems where "term " was not matched using 'word' type matching, though was used 'any' type matching. To maintain word matching status, we patched module to trim terms and synonyms to remove extra (and likely unintentional) whitespace. Attached patch file that simply trims term during search - one line change. A more complete patch might trim every instance of 'synonym' as soon as it gets to the module, though that was unnecessary to fix behaviour.