* zdjelameda.pl: lower max number of retries
* new function: check_for_invalid_request
* check_for_invalid_request: regexp needs a "=" sign

  This is a query_string artefact, it seems: a QUERY_STRING

    ...?dist=Text-Fuzzy%200.09;maxver%27%22

  is translated to

    "dist=Text-Fuzzy%200.09;maxver%27%22="

  This is only the case for "incomplete" parameters, it seems.