Fixed comment, and inproper padding
Fixed comment, and inproper padding

avatao/challenge-engine,avatao-content/challenge-toolbox,avatao-content/challenge-toolbox,avatao-content/challenge-toolbox,avatao-content/challenge-toolbox,avatao/challenge-engine,avatao/challenge-engine,avatao-content/challenge-toolbox,avatao-content/challenge-toolbox,avatao-content/challenge-toolbox,avatao/challenge-engine,avatao/challenge-engine,avatao-content/challenge-toolbox,avatao/challenge-engine,avatao-content/challenge-toolbox,avatao/challenge-engine,avatao/challenge-engine