[R] make all customizations to meet strict standard of cran

python-package/setup.py

@@ -17,7 +17,7 @@ libpath = {'__file__': libpath_py}
 exec(compile(open(libpath_py, "rb").read(), libpath_py, 'exec'), libpath, libpath)
 
 LIB_PATH = libpath['find_lib_path']()
-
+print("Install libxgboost from: %s" % LIB_PATH)
 #Please use setup_pip.py for generating and deploying pip installation
 #detailed instruction in setup_pip.py
 setup(name='xgboost',