Update url_for documentation
Update url_for documentation

Previous documentation referenced a non-existent property on the Flask
object called "build_error_handler".

This should actually reference Flask.url_build_error_handlers.

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