Result is not defined in nrc-parser-manager

[nishant-dani]

In the file nrc-parser-manager ; while running jest I get the following error on line 21; result is not defined. There is no let or var declaration of result.

result = validateProperties(parser,["name:string","parse:function","isDefault:boolean"]);

[SaptatirthaChoudhury]

The variable declared the result on line no 21 is supposed to be const. I am sending PR please review it @nishant-dani