Added hint about print statements in CGI.
Added hint about print statements in CGI.

Fix #646

zailushangde/flask,kuku940/flask,jenalgit/flask,alexwidener/flask,RohithKP/flask,abdulbaqi/flask,ABaldwinHunter/flask-clone-classic,vishnugonela/flask,vishnugonela/flask,DesQi/flask,tjxiter/flask,godfreyy/flask,jawed123/flask,lynget/flask,drewja/flask,auready/flask,suppandi/flask,vishnugonela/flask,dawran6/flask,Parkayun/flask,antsar/flask,Freebird2014/flask,ffsdmad/flask,wtorcasoGB/flask,mysweet/flask,rawrgulmuffins/flask,horica-ionescu/flask,karen-wang/flask,wldtyp/flask,alanhamlett/flask,EasonYi/flask,mrdon/flask,gaomingnudt/gm-flask2.0,skmezanul/flask,ffsdmad/flask,iamantee/flask,ryandvill/flask,wangjun/flask,nZac/flask,jstacoder/flask,mysweet/flask,Papa2k15/flask,AvivC/flask,artleaf/flask,raven47git/flask,pinkpet/flask,luvten/flask,jeezybrick/flask,margguo/flask,rollingstone/flask,gangeshwark/flask,kyle-sorensen/flask,AndreaEdwards/flask,felipefuka/flask,visaxin/flask,cgvarela/flask,Parkayun/flask,dominjune/flask,chuijiaolianying/flask,rawrgulmuffins/flask,DesQi/flask,oculardexterity/flask,artleaf/flask,robertglen/flask,warm200/flask,sam-tsai/flask,liaoqingwei/flask,chuijiaolianying/flask,VShangxiao/flask,lyn233/flask,anujk3/flask,fengsp/flask,jorpramo/flask,niima/flask,jstacoder/flask,ankurpandey/flask,arvinls/flask,stephaniemertz/flask,jonieli/flask,tristanfisher/flask,wudafucode/flask,nju520/flask,lalinsky/flask,Ricardo666666/flask,jeezybrick/flask,mujiatong/flask,VShangxiao/flask,huwenhui/flask,luzzyzhang/flask,happyspace/flask,kyle-sorensen/flask,SsangYoon/Flask,chenrenyi/flask,liuyi1112/flask,Faiz7412/flask,liaoqingwei/flask,fengsp/flask,Ricardo666666/flask,treedledee/flask,flabe81/flask,beni55/flask,ankravch/flask,bodefuwa/flask,aniketshukla/flask,jstacoder/flask,liukaijv/flask,onetinyr/flask,fevxie/flask,suppandi/flask,happyspace/flask,WSDC-NITWarangal/flask,drewja/flask,Eagles2F/flask,TylerB24890/flask,suppandi/flask,mAzurkovic/flask,MjAbuz/flask,alexwidener/flask,nju520/flask,jawed123/flask,nwags/flask,sgrepo/flask,pledo/flask,tony/flask,GavinCruise/flask,EasonYi/flask,q1ang/flask,alanhamlett/flask,raven47git/flask,jorpramo/flask,lalinsky/flask,homeworkprod/flask,rollingstone/flask,mrdon/flask,nwags/flask,arvinls/flask,VictorChaun/flask,margguo/flask,szymonm/flask,algoStruct/flask,brianbeale/flask,MjAbuz/flask,gangeshwark/flask,ankurpandey/flask,dhruvsrivastava/flask,zoyanhui/flask,fanshaohua-fan/flask,gbolahanalade/flask,mrdon/flask,antsar/flask,tangfeng1/flask,RohithKP/flask,alanhamlett/flask,drewja/flask,tangfeng1/flask,gangeshwark/flask,godfreyy/flask,grayswand1r/flask,lynget/flask,HeyItsAlan/flask,brianbeale/flask,xujianhai/flask,wilbert-abreu/flask,jenalgit/flask,oculardexterity/flask,liuyi1112/flask,s7v7nislands/flask,ryandvill/flask,tcnoviembre2013/flask,qinfengsuiyu/flask,happyspace/flask,karlw00t/flask,warm200/flask,jonatanblue/flask,bluedazzle/flask,LonglyCode/flask,vivekanand1101/flask,VictorChaun/flask,JingZhou0404/flask,algoStruct/flask,TylerB24890/flask,LonglyCode/flask,garaden/flask,fkazimierczak/flask,luvten/flask,ezequielo/flask,tripathi62674/flask,treedledee/flask,tjxiter/flask,xujianhai/flask,JingZhou0404/flask,iamantee/flask,adrianmoisey/cptdevops,tangfeng1/flask,skmezanul/flask,sonnyhu/flask,jonieli/flask,SsangYoon/Flask,mujiatong/flask,anujk3/flask,jiimaho/flask,algoStruct/flask,elelianghh/flask,horica-ionescu/flask,wklken/flask,VShangxiao/flask,chenke91/flask,sgrepo/flask,SsangYoon/Flask,ankravch/flask,ghhong1986/flask,robertglen/flask,erishforG/flask,fevxie/flask,chenke91/flask,jenalgit/flask,kyle-sorensen/flask,cgvarela/flask,GavinCruise/flask,GavinCruise/flask,HeyItsAlan/flask,tripathi62674/flask,sixpi/flask,ezequielo/flask,sonnyhu/flask,ABaldwinHunter/flask-clone-classic,ankurpandey/flask,Papa2k15/flask,blankme/flask,mitsuhiko/flask,auready/flask,hyunchel/flask,postelin/flask,pledo/flask,XGiton/flask,Ricardo666666/flask,nju520/flask,lyn233/flask,gilesburnfield/flask,sage417/flask,cheesecake4392/flask,liuyi1112/flask,hoatle/flask,luzzyzhang/flask,pinkpet/flask,szymonm/flask,wklken/flask,adrianmoisey/cptdevops,karlw00t/flask,huwenhui/flask,AvivC/flask,chenrenyi/flask,erishforG/flask,justanr/flask,abdulbaqi/flask,anujk3/flask,edcomstock/flask,hyunchel/flask,sam-tsai/flask,wilbert-abreu/flask,tristanfisher/flask,jiimaho/flask,tony/flask,s7v7nislands/flask,blankme/flask,qinfengsuiyu/flask,q1ang/flask,liaoqingwei/flask,gaomingnudt/gm-flask2.0,XGiton/flask,lord63-forks/flask,Faiz7412/flask,jonieli/flask,dhruvsrivastava/flask,EasonYi/flask,homeworkprod/flask,ghhong1986/flask,Endika/flask,wudafucode/flask,niima/flask,justanr/flask,vivekanand1101/flask,VictorChaun/flask,Endika/flask,dominjune/flask,wldtyp/flask,ZacariasBendeck/flask,hoatle/flask,pallets/flask,elelianghh/flask,jorpramo/flask,Faiz7412/flask,karen-wang/flask,ryandvill/flask,zailushangde/flask,kuhli/flask,s7v7nislands/flask,onetinyr/flask,edcomstock/flask,wtorcasoGB/flask,mitsuhiko/flask,mitchfriedman/flask,gbolahanalade/flask,gilesburnfield/flask,lord63-forks/flask,zoyanhui/flask,JamesTFarrington/flask,AndreaEdwards/flask,karen-wang/flask,chuijiaolianying/flask,justanr/flask,liukaijv/flask,theo-l/flask,oculardexterity/flask,visaxin/flask,fanshaohua-fan/flask,cliu-aa/flask,felipefuka/flask,sixpi/flask,visaxin/flask,theo-l/flask,sage417/flask,JamesTFarrington/flask,pallets/flask,nZac/flask,AndreaEdwards/flask,dawran6/flask,mitchfriedman/flask,postelin/flask,mrdon/flask,moluzhang/flask,flamelizard/flask,Eagles2F/flask,ezequielo/flask,tcnoviembre2013/flask,moluzhang/flask,bluedazzle/flask,warm200/flask,grayswand1r/flask,ZacariasBendeck/flask,TylerB24890/flask,mAzurkovic/flask,godfreyy/flask,flabe81/flask,kuhli/flask,wtl-zju/flask,raven47git/flask,pallets/flask,WSDC-NITWarangal/flask,jonatanblue/flask,cheesecake4392/flask,pxzhenren/flask,fkazimierczak/flask,garaden/flask,wtl-zju/flask,fkazimierczak/flask,wangjun/flask,szymonm/flask,xiaoshaozi52/flask,beni55/flask,stephaniemertz/flask,kuku940/flask,flamelizard/flask,postelin/flask,pxzhenren/flask,aniketshukla/flask,cliu-aa/flask,wklken/flask,artleaf/flask,onetinyr/flask,xiaoshaozi52/flask,bodefuwa/flask,chenke91/flask,Freebird2014/flask