bugfix: fixed compilation errors from the Microsoft C compiler.
bugfix: fixed compilation errors from the Microsoft C compiler.

Signed-off-by: Yichun Zhang (agentzh) <fa25b532e204f1d34fe92d8c736d71d104eef9d1@gmail.com>

openresty/lua-cjson,openresty/lua-cjson,openresty/lua-cjson