template: Fix typo "paramters" -> "parameters"

Author: mstokes-f5

lib/template.js

@@ -1099,7 +1099,7 @@ class Template {
         const combParams = this.getCombinedParameters(parameters);
         if (!this._parametersValidator(combParams)) {
             const validationErrors = this._parseValidationErrors(this._parametersValidator.errors);
-            const err = Error('paramters failed validation');
+            const err = Error('parameters failed validation');
             err.validationErrors = validationErrors;
             err.parameters = combParams;
             throw err;