NSClient reports “Request string contained illegal metachars!”

I as recently compiling an external script within Nagios XI to run using the NSClient where upon execution I was receiving the following message in the nsclient.log: 2013-11-21 17:02:10: error:modules\CheckExternalScripts\CheckExternalScripts.cpp:202: Request string contained illegal metachars! This is due to the NRPE daemon by default not accepting the use of the the characters `&><‘”\[]{} in arguments. … More NSClient reports “Request string contained illegal metachars!”