cmd/go: indent first test binary flag description for `go test -h`
cmd/go: indent first test binary flag description for `go test -h`

Fixes #12642

Change-Id: I0b94437055b7d444f5caf7ea310e85357c467bdf
Reviewed-on: https://go-review.googlesource.com/14612
Reviewed-by: Ian Lance Taylor <87e9c6d529889242b7e184afb632328636553ab4@golang.org>

golang/go,ganboing/go-esx,malvira/go,deft-code/go,ganboing/go-esx,cookerzhu/go,linux-on-ibm-z/go,akutz/go,CAFxX/go,jacobsa/go,4ad/go,CarterTsai/go,CarterTsai/go,stormltf/go,stormltf/go,snowsnail/go,jacobsa/go,vanloswang/go,alex-zhang/go,fjballest/golang,derekmarcotte/go,Endika/go,codestation/go,xiuzhifu/go,suncycheng/go,sndnvaps/go,suncycheng/go,xiuzhifu/go,samanalysis/go,CAFxX/go,4ad/go,rachtsingh/gogojuice,devpadawan/go,akutz/go,sndnvaps/go,Pulgafree/go,cyberroadie/go,derekmarcotte/go,akutz/go,nawawi/go,sndnvaps/go,beealone/go,jonasi/go,NunoEdgarGub1/go,kim-racktop/go,binarycrusader/go,fjballest/golang,CAFxX/go,alex-zhang/go,joshsammut/go,malvira/go,beealone/go,linux-on-ibm-z/go,cloudflare/go,golang/go,golang/go,Cofyc/go,cyberroadie/go,stormltf/go,joshsammut/go,miolini/go,b54898533/go,vanloswang/go,miolini/go,josharian/go,christopher-henderson/Go,Endika/go,mwhudson/go,b54898533/go,yasarkunduz/go,samanalysis/go,Endika/go,GeorgiCodes/go,likesea/go,binarycrusader/go,derekmarcotte/go,gdey/go,roth1002/go,theif519/go,vanloswang/go,jonasi/go,momchil-velikov/go,GeorgiCodes/go,NunoEdgarGub1/go,codestation/go,devpadawan/go,cookerzhu/go,goodlang/good,likesea/go,joshsammut/go,ichu501/go,fjballest/golang,CAFxX/go,dterei/go,4ad/go,Jordanzuo/go,roth1002/go,devpadawan/go,linux-on-ibm-z/go,ichu501/go,suncycheng/go,jonasi/go,jacobsa/go,samanalysis/go,odeke-em/go,suncycheng/go,golang/go,likesea/go,linux-on-ibm-z/go,dterei/go,nawawi/go,GeorgiCodes/go,golang/go,binarycrusader/go,cookerzhu/go,sndnvaps/go,cloudflare/go,Jordanzuo/go,snowsnail/go,Cofyc/go,derekmarcotte/go,gdey/go,Endika/go,jacobsa/go,yasarkunduz/go,devpadawan/go,Cofyc/go,danielsoro/go,odeke-em/go,Jordanzuo/go,binarycrusader/go,jacobhaven/go,ganboing/go-esx,vsekhar/elastic-go,josharian/go,mikekap/go,ichu501/go,Pulgafree/go,alex-zhang/go,mwhudson/go,b54898533/go,suncycheng/go,Pulgafree/go,nawawi/go,derekmarcotte/go,GeorgiCodes/go,joshsammut/go,golang/go,cookerzhu/go,Jordanzuo/go,mwhudson/go,ImJasonH/go,zhangg/go,mwhudson/go,goodlang/good,rachtsingh/gogojuice,samanalysis/go,polyverse-security/go,b54898533/go,cyberroadie/go,vanloswang/go,golang/go,samanalysis/go,jacobhaven/go,dterei/go,zhangg/go,sndnvaps/go,mwhudson/go,NunoEdgarGub1/go,CAFxX/go,Endika/go,vsekhar/elastic-go,linux-on-ibm-z/go,josharian/go,joshsammut/go,Cofyc/go,theif519/go,nawawi/go,cloudflare/go,theif519/go,mikekap/go,jonasi/go,zhangg/go,momchil-velikov/go,momchil-velikov/go,CarterTsai/go,nawawi/go,CarterTsai/go,rachtsingh/gogojuice,stormltf/go,cookerzhu/go,alex-zhang/go,miolini/go,fjballest/golang,rachtsingh/gogojuice,cloudflare/go,momchil-velikov/go,odeke-em/go,jacobsa/go,gdey/go,xiuzhifu/go,goodlang/good,jacobhaven/go,Samurais/go,akutz/go,joshsammut/go,roth1002/go,derekmarcotte/go,sndnvaps/go,likesea/go,josharian/go,kim-racktop/go,vsekhar/elastic-go,akutz/go,devpadawan/go,goodlang/good,snowsnail/go,momchil-velikov/go,jdhenke/go,Pulgafree/go,malvira/go,xiuzhifu/go,miolini/go,likesea/go,jdhenke/go,josharian/go,dterei/go,yasarkunduz/go,binarycrusader/go,4ad/go,likesea/go,malvira/go,akutz/go,yasarkunduz/go,zhangg/go,4ad/go,danielsoro/go,CAFxX/go,GeorgiCodes/go,malvira/go,cyberroadie/go,devpadawan/go,b54898533/go,momchil-velikov/go,sndnvaps/go,josharian/go,roth1002/go,Endika/go,cyberroadie/go,miolini/go,cookerzhu/go,malvira/go,beealone/go,polyverse-security/go,CarterTsai/go,kim-racktop/go,yasarkunduz/go,ImJasonH/go,snowsnail/go,odeke-em/go,binarycrusader/go,ganboing/go-esx,codestation/go,kim-racktop/go,cloudflare/go,CarterTsai/go,Endika/go,kim-racktop/go,miolini/go,cloudflare/go,theif519/go,vanloswang/go,Jordanzuo/go,mikekap/go,mikekap/go,rachtsingh/gogojuice,danielsoro/go,xiuzhifu/go,samanalysis/go,alex-zhang/go,stormltf/go,codestation/go,vsekhar/elastic-go,samanalysis/go,jdhenke/go,roth1002/go,ganboing/go-esx,jacobsa/go,derekmarcotte/go,devpadawan/go,cyberroadie/go,jonasi/go,golang/go,momchil-velikov/go,Cofyc/go,NunoEdgarGub1/go,cookerzhu/go,ganboing/go-esx,jacobhaven/go,ImJasonH/go,theif519/go,jonasi/go,kim-racktop/go,mwhudson/go,xiuzhifu/go,polyverse-security/go,dterei/go,Jordanzuo/go,goodlang/good,kim-racktop/go,mikekap/go,likesea/go,ichu501/go,jacobhaven/go,devpadawan/go,theif519/go,polyverse-security/go,ganboing/go-esx,rachtsingh/gogojuice,vanloswang/go,Cofyc/go,miolini/go,Jordanzuo/go,cyberroadie/go,beealone/go,CAFxX/go,gdey/go,NunoEdgarGub1/go,yasarkunduz/go,roth1002/go,Samurais/go,nawawi/go,ichu501/go,zhangg/go,odeke-em/go,odeke-em/go,ImJasonH/go,deft-code/go,mwhudson/go,roth1002/go,GeorgiCodes/go,nawawi/go,momchil-velikov/go,Pulgafree/go,cloudflare/go,ImJasonH/go,goodlang/good,samanalysis/go,derekmarcotte/go,joshsammut/go,sndnvaps/go,likesea/go,nawawi/go,yasarkunduz/go,jdhenke/go,akutz/go,polyverse-security/go,cookerzhu/go,danielsoro/go,suncycheng/go,4ad/go,Pulgafree/go,codestation/go,goodlang/good,4ad/go,dterei/go,xiuzhifu/go,beealone/go,ichu501/go,polyverse-security/go,binarycrusader/go,jdhenke/go,ImJasonH/go,gdey/go,snowsnail/go,danielsoro/go,binarycrusader/go,Cofyc/go,Cofyc/go,ImJasonH/go,suncycheng/go,danielsoro/go,jonasi/go,malvira/go,GeorgiCodes/go,dterei/go,b54898533/go,cloudflare/go,4ad/go,polyverse-security/go,linux-on-ibm-z/go,deft-code/go,jdhenke/go,goodlang/good,jacobhaven/go,NunoEdgarGub1/go,jacobhaven/go,vsekhar/elastic-go,vsekhar/elastic-go,linux-on-ibm-z/go,mikekap/go,alex-zhang/go,mwhudson/go,jacobhaven/go,deft-code/go,CarterTsai/go,xiuzhifu/go,fjballest/golang,vanloswang/go,joshsammut/go,deft-code/go,snowsnail/go,theif519/go,codestation/go,yasarkunduz/go,Samurais/go,malvira/go,Pulgafree/go,vsekhar/elastic-go,jdhenke/go,Samurais/go,deft-code/go,NunoEdgarGub1/go,deft-code/go,fjballest/golang,stormltf/go,ganboing/go-esx,alex-zhang/go,danielsoro/go,linux-on-ibm-z/go,NunoEdgarGub1/go,rachtsingh/gogojuice,fjballest/golang,Endika/go,Samurais/go,codestation/go,GeorgiCodes/go,CarterTsai/go,stormltf/go,zhangg/go,dterei/go,theif519/go,gdey/go,roth1002/go,CAFxX/go,ichu501/go,gdey/go,jonasi/go,b54898533/go,jacobsa/go,stormltf/go,rachtsingh/gogojuice,polyverse-security/go,odeke-em/go,vsekhar/elastic-go,beealone/go,snowsnail/go,beealone/go,Samurais/go,codestation/go,Samurais/go,beealone/go,kim-racktop/go,zhangg/go,alex-zhang/go,deft-code/go,mikekap/go,miolini/go,suncycheng/go,ichu501/go,jdhenke/go,danielsoro/go,b54898533/go,snowsnail/go,zhangg/go,mikekap/go,akutz/go,cyberroadie/go,gdey/go,Jordanzuo/go,odeke-em/go,jacobsa/go,fjballest/golang,Pulgafree/go,vanloswang/go,Samurais/go,josharian/go,josharian/go,ImJasonH/go