update cmake

core/cube/cube-transfer/CMakeLists.txt

@@ -22,7 +22,7 @@ ExternalGoProject_Add(rfw github.com/mipearson/rfw)
 ExternalGoProject_Add(docopt-go github.com/docopt/docopt-go)  
 add_custom_target(logex
                   COMMAND env GOPATH=${GOPATH} ${CMAKE_Go_COMPILER} get github.com/Badangel/logex
-                  DEPENDS ${rfw})
+                  DEPENDS rfw)
 
 add_subdirectory(src)
 install(DIRECTORY ${CMAKE_CURRENT_LIST_DIR}/conf DESTINATION ${PADDLE_SERVING_INSTALL_DIR})