bufio: Remove unneeded error initialization
bufio: Remove unneeded error initialization

The default value for error is nil so there is no need to assign this
value here.

Change-Id: I4714ef7607996ccbf91b704390e1d1d39ee3847b
Reviewed-on: https://go-review.googlesource.com/12355
Reviewed-by: Ian Lance Taylor <87e9c6d529889242b7e184afb632328636553ab4@golang.org>
Run-TryBot: Ian Lance Taylor <87e9c6d529889242b7e184afb632328636553ab4@golang.org>
TryBot-Result: Gobot Gobot <66cb808b70d30c07676d5e946fee83fd561249e5@golang.org>

famorted/go,cyberroadie/go,theass/go,CiscoCloud/go,cloudrain21/go,jmptrader/go,cyberroadie/go,cookerzhu/go,agaurav/go,kakuhiroshi/go,jacobhaven/go,shines77/go,suncycheng/go,famorted/go,snowsnail/go,sndnvaps/go,vishsingh/go,constantine001/go,danycoro/go,undergrowthlinear/go,kim-racktop/go,linux-on-ibm-z/go,odeke-em/go,willjunspecial/go,NichoZhang/go,kim-racktop/go,dterei/go,jacobhaven/go,vsdutka/go,zcwfeng/go,yuhengye/go,sosop/go,jacobhaven/go,polyverse-security/go,polyverse-security/go,cloudflare/go,xiaobodu/go,GeorgiCodes/go,rachtsingh/gogojuice,WIZARD-CXY/go,miolini/go,xiaobodu/go,myPublicGit/go,alash3al/go,GeorgiCodes/go,theass/go,cainiaocome/go,snowsnail/go,golang/go,Cofyc/go,akutz/go,cloudrain21/go,vsekhar/elastic-go,Samurais/go,polyverse-security/go,josharian/go,leeric92/go,ganboing/go-esx,lihuanghai/go,Jordanzuo/go,CAFxX/go,xiuzhifu/go,josharian/go,leeric92/go,leeric92/go,pgmreddy/go,mgyenik/go,zouchao2010/go,zcwfeng/go,ifagnosticism/go,youprofit/go,cloudflare/go,4ad/go,cnbin/go,ImJasonH/go,rentongzhang/go,pgmreddy/go,vanloswang/go,cnbin/go,mwhudson/go,kevinc0825/go,Pulgafree/go,4ad/go,donnel6809/go,miolini/go,RBEGamer/go,akutz/go,theif519/go,malvira/go,xujianhai/go,youprofit/go,qskycolor/go,xinhuang327/go,yangzhongj/go,andrewchambers/go,devpadawan/go,uileyar/go,Badredapple/go,nawawi/go,jameskumar/go,chinanjjohn2012/go,ImJasonH/go,CAFxX/go,vanloswang/go,alash3al/go,sndnvaps/go,momchil-velikov/go,goodlang/good,jmptrader/go,dkolbly/go,jefby/go,CarterTsai/go,albertjin/golang-go,donnel6809/go,devpadawan/go,cookerzhu/go,jacobhaven/go,joshsammut/go,Young55555/go,theass/go,arschles/golang-go,jameskumar/go,Cofyc/go,monetate/go,NichoZhang/go,snowsnail/go,kevinc0825/go,alex-zhang/go,undergrowthlinear/go,sndnvaps/go,sndnvaps/go,deft-code/go,cnbin/go,cyberroadie/go,jonathanmarvens/go,mikekap/go,willjunspecial/go,malvira/go,honsiorovskyi/go,jdhenke/go,malvira/go,dgnorton/go,joshsammut/go,shazow/go,Cofyc/go,dterei/go,ichu501/go,vanloswang/go,ichu501/go,theass/go,linux-on-ibm-z/go,xiuzhifu/go,roth1002/go,zcwfeng/go,skotti/go,jacobxk/go,NichoZhang/go,yasarkunduz/go,WIZARD-CXY/go,kim-racktop/go,Endika/go,jdeng/go,jameskumar/go,skotti/go,shines77/go,devpadawan/go,gdey/go,skatsuta/go,vsekhar/elastic-go,theass/go,dpatel06/go,cainiaocome/go,akutz/go,vanloswang/go,vishsingh/go,Charlesdong/go-1,snowsnail/go,JioCloud/go,jameskumar/go,xiaobodu/go,CiscoCloud/go,mwhudson/go,youprofit/go,Badredapple/go,dafyddcrosby/go,dpatel06/go,Jordanzuo/go,codestation/go,springning/go,baiyunping333/go,yuhengye/go,nakedgc/go,Pulgafree/go,ImJasonH/go,AALEKH/go,zouchao2010/go,gohin/go,beealone/go,jdeng/go,arschles/go-1,cainiaocome/go,mgyenik/go,alex-zhang/go,dkolbly/go,vsdutka/go,samanalysis/go,mdp/go,b54898533/go,famorted/go,vishsingh/go,WIZARD-CXY/go,linux-on-ibm-z/go,CodyGuo/go,vsekhar/elastic-go,shines77/go,cloudrain21/go,jacobxk/go,akutz/go,monetate/go,greyhwndz/go,cookerzhu/go,XuYunnan/go,ImJasonH/go,Samurais/go,yangzhongj/go,jasonxiong/go,theif519/go,sosop/go,nawawi/go,likesea/go,dterei/go,dkolbly/go,theif519/go,dkolbly/go,honsiorovskyi/go,undergrowthlinear/go,baiyunping333/go,jmptrader/go,jonathanmarvens/go,jacobsa/go,WIZARD-CXY/go,Pulgafree/go,mbrukman/go,danielsoro/go,donnel6809/go,suncycheng/go,rachtsingh/gogojuice,alash3al/go,andrewchambers/go,samanalysis/go,monetate/go,snowsnail/go,JioCloud/go,ifagnosticism/go,stormltf/go,slavau/go,jacobxk/go,deft-code/go,kakuhiroshi/go,xinhuang327/go,rachtsingh/gogojuice,jacobsa/go,arschles/go-1,myPublicGit/go,yangzhongj/go,Charlesdong/go-1,zouchao2010/go,greyhwndz/go,josharian/go,sinuos/go,shazow/go,cloudrain21/go,pgmreddy/go,sinuos/go,odeke-em/go,cloudrain21/go,mikekap/go,GeorgiCodes/go,undergrowthlinear/go,dafyddcrosby/go,vsdutka/go,famorted/go,nakedgc/go,beealone/go,skotti/go,dpatel06/go,miolini/go,4ad/go,yasarkunduz/go,derekmarcotte/go,kim-racktop/go,theif519/go,cnbin/go,jdhenke/go,danycoro/go,slavau/go,wangfakang/go-1,Young55555/go,jasonxiong/go,alash3al/go,yasarkunduz/go,sosop/go,GeorgiCodes/go,honsiorovskyi/go,NunoEdgarGub1/go,XuYunnan/go,suncycheng/go,skatsuta/go,gdey/go,Stan-Lin-/go,jonahglover/go,mgyenik/go,cookerzhu/go,jdeng/go,constantine001/go,Cofyc/go,mwhudson/go,RBEGamer/go,CodyGuo/go,Stan-Lin-/go,RBEGamer/go,youprofit/go,roth1002/go,sndnvaps/go,cookerzhu/go,b54898533/go,Charlesdong/go-1,sosop/go,deft-code/go,zouchao2010/go,jacobxk/go,roth1002/go,zouchao2010/go,vishsingh/go,wangfakang/go-1,golang/go,XuYunnan/go,jacobsa/go,ericsnowcurrently/go,Charlesdong/go-1,wangfakang/go-1,cloudflare/go,XuYunnan/go,jasonxiong/go,jonathanmarvens/go,Endika/go,kevinc0825/go,baiyunping333/go,nawawi/go,cyberroadie/go,agaurav/go,uileyar/go,GeorgiCodes/go,jacobxk/go,sinuos/go,shines77/go,wangfakang/go-1,parkdy/go,agaurav/go,b54898533/go,rentongzhang/go,arschles/golang-go,beealone/go,nakedgc/go,leeric92/go,yuhengye/go,Endika/go,pgmreddy/go,jonahglover/go,rentongzhang/go,vsdutka/go,Endika/go,dgnorton/go,likesea/go,binarycrusader/go,youprofit/go,lihuanghai/go,4ad/go,deft-code/go,slavau/go,theass/go,lihuanghai/go,cnbin/go,springning/go,JioCloud/go,parkdy/go,sndnvaps/go,joshsammut/go,golang/go,cyberroadie/go,xujianhai/go,fjballest/golang,cainiaocome/go,JioCloud/go,shazow/go,jonasi/go,theif519/go,CAFxX/go,jefby/go,cloudflare/go,kevinc0825/go,ObjectiveJoe/go,xinhuang327/go,CiscoCloud/go,samanalysis/go,Samurais/go,qskycolor/go,nakedgc/go,polyverse-security/go,Jordanzuo/go,danielsoro/go,CAFxX/go,ericsnowcurrently/go,CiscoCloud/go,vishsingh/go,rentongzhang/go,xujianhai/go,NichoZhang/go,samanalysis/go,miolini/go,skotti/go,momchil-velikov/go,CAFxX/go,ErikDubbelboer/go,likesea/go,roth1002/go,mwhudson/go,beealone/go,CiscoCloud/go,ObjectiveJoe/go,vsekhar/elastic-go,g522342435/go,odeke-em/go,monetate/go,xinhuang327/go,yuhengye/go,arschles/golang-go,mgyenik/go,danielsoro/go,nawawi/go,Jordanzuo/go,mdp/go,Samurais/go,alex-zhang/go,yangzhongj/go,ichu501/go,xiuzhifu/go,chinanjjohn2012/go,mdp/go,parkdy/go,constantine001/go,cloudflare/go,mbrukman/go,jefby/go,4ad/go,CodyGuo/go,AALEKH/go,dkolbly/go,jasonxiong/go,jdhenke/go,yangzhongj/go,Samurais/go,josharian/go,jonahglover/go,GeorgiCodes/go,fjballest/golang,Young55555/go,yasarkunduz/go,codestation/go,beealone/go,xiaobodu/go,shines77/go,rachtsingh/gogojuice,WIZARD-CXY/go,skatsuta/go,polyverse-security/go,jacobsa/go,jonathanmarvens/go,slavau/go,qskycolor/go,goodlang/good,willjunspecial/go,jonahglover/go,CodyGuo/go,stormltf/go,skatsuta/go,fjballest/golang,wangfakang/go-1,ImJasonH/go,stormltf/go,josharian/go,ericsnowcurrently/go,jefby/go,NunoEdgarGub1/go,JioCloud/go,andrewchambers/go,Young55555/go,cainiaocome/go,dpatel06/go,donnel6809/go,lihuanghai/go,agaurav/go,xinhuang327/go,ObjectiveJoe/go,xinhuang327/go,akutz/go,theif519/go,ImJasonH/go,sinuos/go,derekmarcotte/go,nakedgc/go,willjunspecial/go,mikekap/go,g522342435/go,skotti/go,odeke-em/go,pgmreddy/go,ifagnosticism/go,goodlang/good,vsdutka/go,likesea/go,XuYunnan/go,b54898533/go,roth1002/go,youprofit/go,mgyenik/go,nakedgc/go,theif519/go,alex-zhang/go,ichu501/go,qskycolor/go,danycoro/go,zhangg/go,skotti/go,ifagnosticism/go,zcwfeng/go,rachtsingh/gogojuice,alash3al/go,binarycrusader/go,mbrukman/go,CodyGuo/go,yuhengye/go,jonahglover/go,samanalysis/go,beealone/go,GeorgiCodes/go,ErikDubbelboer/go,gohin/go,golang/go,jonahglover/go,ericsnowcurrently/go,pgmreddy/go,linux-on-ibm-z/go,willjunspecial/go,fjballest/golang,agaurav/go,zcwfeng/go,cloudflare/go,kakuhiroshi/go,mwhudson/go,NichoZhang/go,AALEKH/go,yuhengye/go,jefby/go,roth1002/go,NichoZhang/go,arschles/golang-go,danycoro/go,alex-zhang/go,stormltf/go,RBEGamer/go,jmptrader/go,xujianhai/go,joshsammut/go,wangfakang/go-1,stormltf/go,ichu501/go,likesea/go,honsiorovskyi/go,rachtsingh/gogojuice,mikekap/go,jacobhaven/go,ifagnosticism/go,albertjin/golang-go,miolini/go,constantine001/go,youprofit/go,jonasi/go,vsekhar/elastic-go,constantine001/go,goodlang/good,lihuanghai/go,chinanjjohn2012/go,kim-racktop/go,Stan-Lin-/go,golang/go,undergrowthlinear/go,Jordanzuo/go,beealone/go,vsdutka/go,josharian/go,miolini/go,jdeng/go,cloudrain21/go,joshsammut/go,donnel6809/go,chinanjjohn2012/go,derekmarcotte/go,parkdy/go,sndnvaps/go,malvira/go,devpadawan/go,slavau/go,danycoro/go,binarycrusader/go,ganboing/go-esx,rentongzhang/go,dafyddcrosby/go,g522342435/go,Charlesdong/go-1,greyhwndz/go,cainiaocome/go,zhangg/go,odeke-em/go,Badredapple/go,RBEGamer/go,dterei/go,dgnorton/go,jacobxk/go,mbrukman/go,Pulgafree/go,snowsnail/go,b54898533/go,dpatel06/go,kim-racktop/go,JioCloud/go,springning/go,vanloswang/go,slavau/go,vishsingh/go,uileyar/go,jameskumar/go,myPublicGit/go,yasarkunduz/go,sosop/go,nawawi/go,dkolbly/go,xujianhai/go,baiyunping333/go,skotti/go,uileyar/go,vanloswang/go,yuhengye/go,binarycrusader/go,jonathanmarvens/go,mikekap/go,deft-code/go,odeke-em/go,Jordanzuo/go,Charlesdong/go-1,kevinc0825/go,devpadawan/go,Endika/go,pgmreddy/go,dterei/go,gdey/go,roth1002/go,samanalysis/go,chinanjjohn2012/go,NunoEdgarGub1/go,binarycrusader/go,yangzhongj/go,jasonxiong/go,jacobhaven/go,andrewchambers/go,wangfakang/go-1,alex-zhang/go,golang/go,b54898533/go,CAFxX/go,CodyGuo/go,g522342435/go,samanalysis/go,mdp/go,jacobxk/go,polyverse-security/go,vsdutka/go,Samurais/go,ErikDubbelboer/go,Stan-Lin-/go,rachtsingh/gogojuice,Badredapple/go,agaurav/go,mwhudson/go,deft-code/go,NichoZhang/go,uileyar/go,ganboing/go-esx,jdhenke/go,ObjectiveJoe/go,dkolbly/go,odeke-em/go,danielsoro/go,springning/go,cloudrain21/go,shazow/go,XuYunnan/go,zhangg/go,famorted/go,CAFxX/go,Stan-Lin-/go,akutz/go,mbrukman/go,CarterTsai/go,suncycheng/go,myPublicGit/go,gohin/go,AALEKH/go,agaurav/go,arschles/go-1,christopher-henderson/Go,myPublicGit/go,ImJasonH/go,albertjin/golang-go,danycoro/go,joshsammut/go,vsekhar/elastic-go,mwhudson/go,momchil-velikov/go,cyberroadie/go,codestation/go,jacobsa/go,qskycolor/go,kakuhiroshi/go,andrewchambers/go,cookerzhu/go,NichoZhang/go,Jordanzuo/go,ifagnosticism/go,malvira/go,jonahglover/go,xiuzhifu/go,ganboing/go-esx,ganboing/go-esx,alash3al/go,Badredapple/go,Pulgafree/go,mwhudson/go,baiyunping333/go,JioCloud/go,CarterTsai/go,vsdutka/go,Charlesdong/go-1,jdhenke/go,dafyddcrosby/go,fjballest/golang,cnbin/go,shines77/go,4ad/go,shazow/go,binarycrusader/go,mgyenik/go,undergrowthlinear/go,dgnorton/go,deft-code/go,shazow/go,lihuanghai/go,andrewchambers/go,codestation/go,cainiaocome/go,pgmreddy/go,codestation/go,CiscoCloud/go,ErikDubbelboer/go,xiuzhifu/go,Endika/go,zouchao2010/go,greyhwndz/go,xujianhai/go,4ad/go,xiuzhifu/go,jacobsa/go,nawawi/go,skatsuta/go,xiaobodu/go,ifagnosticism/go,qskycolor/go,cyberroadie/go,jdhenke/go,danycoro/go,ErikDubbelboer/go,arschles/go-1,suncycheng/go,goodlang/good,WIZARD-CXY/go,kim-racktop/go,undergrowthlinear/go,ericsnowcurrently/go,polyverse-security/go,gdey/go,GeorgiCodes/go,kakuhiroshi/go,CarterTsai/go,sosop/go,zouchao2010/go,malvira/go,donnel6809/go,myPublicGit/go,cnbin/go,odeke-em/go,suncycheng/go,linux-on-ibm-z/go,jmptrader/go,NunoEdgarGub1/go,parkdy/go,dterei/go,jameskumar/go,NunoEdgarGub1/go,ObjectiveJoe/go,danycoro/go,golang/go,dafyddcrosby/go,sinuos/go,leeric92/go,albertjin/golang-go,jameskumar/go,sinuos/go,g522342435/go,baiyunping333/go,Stan-Lin-/go,roth1002/go,sosop/go,WIZARD-CXY/go,qskycolor/go,rachtsingh/gogojuice,monetate/go,jonathanmarvens/go,baiyunping333/go,qskycolor/go,ErikDubbelboer/go,Samurais/go,leeric92/go,kevinc0825/go,mbrukman/go,CAFxX/go,Samurais/go,monetate/go,jacobxk/go,zhangg/go,willjunspecial/go,leeric92/go,momchil-velikov/go,Badredapple/go,jonasi/go,dkolbly/go,jefby/go,josharian/go,slavau/go,ObjectiveJoe/go,devpadawan/go,myPublicGit/go,ericsnowcurrently/go,honsiorovskyi/go,honsiorovskyi/go,springning/go,Stan-Lin-/go,CarterTsai/go,jasonxiong/go,zcwfeng/go,Young55555/go,jdhenke/go,zhangg/go,chinanjjohn2012/go,springning/go,dgnorton/go,jdeng/go,parkdy/go,JioCloud/go,goodlang/good,mbrukman/go,ichu501/go,b54898533/go,alash3al/go,cyberroadie/go,Badredapple/go,dpatel06/go,gdey/go,andrewchambers/go,Stan-Lin-/go,kakuhiroshi/go,arschles/go-1,lihuanghai/go,constantine001/go,derekmarcotte/go,slavau/go,codestation/go,dafyddcrosby/go,xujianhai/go,CarterTsai/go,leeric92/go,yangzhongj/go,arschles/golang-go,miolini/go,vanloswang/go,zhangg/go,derekmarcotte/go,g522342435/go,dafyddcrosby/go,greyhwndz/go,RBEGamer/go,ganboing/go-esx,shines77/go,gdey/go,parkdy/go,jacobsa/go,arschles/golang-go,cookerzhu/go,malvira/go,snowsnail/go,mgyenik/go,ErikDubbelboer/go,donnel6809/go,rentongzhang/go,jacobhaven/go,Badredapple/go,josharian/go,ericsnowcurrently/go,jonasi/go,cloudflare/go,xujianhai/go,Pulgafree/go,goodlang/good,sosop/go,theass/go,dafyddcrosby/go,agaurav/go,Cofyc/go,linux-on-ibm-z/go,mgyenik/go,jonasi/go,golang/go,XuYunnan/go,arschles/golang-go,likesea/go,Young55555/go,fjballest/golang,jmptrader/go,deft-code/go,ErikDubbelboer/go,nawawi/go,gohin/go,yasarkunduz/go,xiuzhifu/go,jmptrader/go,ericsnowcurrently/go,cloudrain21/go,gdey/go,dgnorton/go,parkdy/go,greyhwndz/go,vsekhar/elastic-go,xiaobodu/go,xinhuang327/go,arschles/go-1,jacobsa/go,Young55555/go,skatsuta/go,Jordanzuo/go,dterei/go,XuYunnan/go,akutz/go,stormltf/go,gohin/go,greyhwndz/go,ObjectiveJoe/go,joshsammut/go,arschles/go-1,zcwfeng/go,sndnvaps/go,myPublicGit/go,willjunspecial/go,kakuhiroshi/go,ifagnosticism/go,vishsingh/go,cnbin/go,rentongzhang/go,AALEKH/go,zhangg/go,kevinc0825/go,lihuanghai/go,skatsuta/go,mikekap/go,derekmarcotte/go,zhangg/go,chinanjjohn2012/go,AALEKH/go,linux-on-ibm-z/go,vishsingh/go,binarycrusader/go,mdp/go,rentongzhang/go,danielsoro/go,ImJasonH/go,derekmarcotte/go,arschles/golang-go,vsekhar/elastic-go,theif519/go,baiyunping333/go,RBEGamer/go,jdeng/go,mbrukman/go,famorted/go,CiscoCloud/go,dpatel06/go,codestation/go,akutz/go,jonasi/go,honsiorovskyi/go,constantine001/go,samanalysis/go,mdp/go,danielsoro/go,momchil-velikov/go,sinuos/go,famorted/go,nakedgc/go,suncycheng/go,jdhenke/go,AALEKH/go,dterei/go,greyhwndz/go,jasonxiong/go,linux-on-ibm-z/go,jonathanmarvens/go,skotti/go,xiaobodu/go,jonasi/go,devpadawan/go,Endika/go,danielsoro/go,AALEKH/go,snowsnail/go,willjunspecial/go,zcwfeng/go,g522342435/go,xiuzhifu/go,gohin/go,jdeng/go,springning/go,alex-zhang/go,Pulgafree/go,stormltf/go,dgnorton/go,codestation/go,famorted/go,kim-racktop/go,Charlesdong/go-1,Endika/go,undergrowthlinear/go,Cofyc/go,uileyar/go,monetate/go,jmptrader/go,gohin/go,goodlang/good,derekmarcotte/go,mikekap/go,yuhengye/go,albertjin/golang-go,fjballest/golang,CiscoCloud/go,albertjin/golang-go,4ad/go,NunoEdgarGub1/go,arschles/go-1,springning/go,malvira/go,b54898533/go,WIZARD-CXY/go,zouchao2010/go,jonahglover/go,cloudflare/go,CodyGuo/go,sinuos/go,ichu501/go,vanloswang/go,jonathanmarvens/go,cookerzhu/go,jasonxiong/go,nawawi/go,CodyGuo/go,gohin/go,fjballest/golang,albertjin/golang-go,xinhuang327/go,skatsuta/go,jacobhaven/go,constantine001/go,honsiorovskyi/go,kakuhiroshi/go,devpadawan/go,dpatel06/go,kevinc0825/go,ganboing/go-esx,Cofyc/go,shazow/go,likesea/go,beealone/go,nakedgc/go,g522342435/go,shazow/go,NunoEdgarGub1/go,binarycrusader/go,andrewchambers/go,donnel6809/go,ObjectiveJoe/go,Pulgafree/go,joshsammut/go,momchil-velikov/go,yangzhongj/go,albertjin/golang-go,yasarkunduz/go,danielsoro/go,jonasi/go,jdeng/go,xiaobodu/go,mdp/go,dgnorton/go,ichu501/go,uileyar/go,alex-zhang/go,jameskumar/go,momchil-velikov/go,jefby/go,CarterTsai/go,miolini/go,yasarkunduz/go,momchil-velikov/go,shines77/go,suncycheng/go,cainiaocome/go,wangfakang/go-1,theass/go,CarterTsai/go,RBEGamer/go,stormltf/go,uileyar/go,ganboing/go-esx,mikekap/go,mdp/go,jefby/go,Young55555/go,monetate/go,likesea/go,alash3al/go,chinanjjohn2012/go,Cofyc/go,youprofit/go,gdey/go,NunoEdgarGub1/go,polyverse-security/go