change function name 'module' -> 'esshmodule'. The name 'module' is builtin function.
change function name 'module' -> 'esshmodule'. The name 'module' is builtin function.

kohkimakimoto/essh,kohkimakimoto/essh,kohkimakimoto/zssh,kohkimakimoto/zssh,kohkimakimoto/zssh