Remove fstream from intern_test; stringstream is used instead
Remove fstream from intern_test; stringstream is used instead

elkingtonmcb/jubatus,jubatus/jubatus,gintenlabo/jubatus_core,kmaehashi/jubatus_core,Asuka52/jubatus,rimms/jubatus,jubatus/jubatus,kmaehashi/jubatus_core,gintenlabo/jubatus_core,rimms/jubatus,rimms/jubatus_core,gintenlabo/jubatus_core,gintenlabo/jubatus_core,kumagi/jubatus_core,mathn/jubatus,kumagi/jubatus_core,mathn/jubatus,jubatus/jubatus,roselleebarle04/jubatus,gintenlabo/jubatus,kmaehashi/jubatus_core,rimms/jubatus_core,roselleebarle04/jubatus,kmaehashi/jubatus,kmaehashi/jubatus_core,kumagi/jubatus_core,kumagi/jubatus_core,Asuka52/jubatus,rimms/jubatus_core,kmaehashi/jubatus,elkingtonmcb/jubatus,gintenlabo/jubatus,rimms/jubatus_core