Lock resultset json file
Lock resultset json file

To prevent two processes writes at the same time.

hugopeixoto/simplecov,colszowka/simplecov,gerry3/simplecov,irfanah/simplecov,QuickPay/simplecov,mallikarjunayaddala/simplecov,colszowka/simplecov,ptashman/simplecov,playpasshq/simplecov