fixed bug in UcpaasAgent
fixed bug in UcpaasAgent

xujif/laravel-sms,luzhongyang/laravel-sms,theroad/laravel-sms,goodspb/laravel-sms,toplan/laravel-sms,luzhongyang/laravel-sms,toplan/laravel-sms,goodspb/laravel-sms,RichardFans/laravel-sms,theroad/laravel-sms,RichardFans/laravel-sms,xujif/laravel-sms