Changed pickle to default true in-line with EAGLE

Former-commit-id: 21e92a752c74de6ff74fd5197cba3f88037f678c
Former-commit-id: 983896c9e94e6470c08f9d2c42121cbb01d729e3

daliuge-engine/dlg/apps/pyfunc.py

@@ -138,7 +138,7 @@ def import_using_code(code):
 #     \~English Python function name
 # @param[in] aparam/func_code Function Code//String/readwrite/False//False/
 #     \~English Python function code, e.g. 'def function_name(args): return args'
-# @param[in] aparam/pickle Pickle/false/Boolean/readwrite/False//False/
+# @param[in] aparam/pickle Pickle/true/Boolean/readwrite/False//False/
 #     \~English Whether the python arguments are pickled.
 # @param[in] aparam/func_defaults Function Defaults//String/readwrite/False//False/
 #     \~English Mapping from argname to default value. Should match only the last part of the argnames list.