Fixed a bug parsing arguments in merge_xunit main function
Fixed a bug parsing arguments in merge_xunit main function

cloudera/dist_test,umbrant/dist_test,umbrant/dist_test,xiao-chen/dist_test,xiao-chen/dist_test,umbrant/dist_test,xiao-chen/dist_test,cloudera/dist_test,umbrant/dist_test,cloudera/dist_test,xiao-chen/dist_test,cloudera/dist_test