net/http: fix typo in comment
net/http: fix typo in comment

Change-Id: I753e62879a56582a9511e3f34fdeac929202efbf
Reviewed-on: https://go-review.googlesource.com/22680
Reviewed-by: Ralph Corderoy <d6424ecc823ca663bdcbaea8e2d9df58a4d0e2b8@inputplus.co.uk>
Reviewed-by: Brad Fitzpatrick <ae9783c0b0efc69cd85ab025ddd17aa44cdc4aa5@golang.org>

josharian/go,christopher-henderson/Go,ImJasonH/go,ganboing/go-esx,akutz/go,josharian/go,ImJasonH/go,CAFxX/go,suncycheng/go,golang/go,momchil-velikov/go,cloudflare/go,nawawi/go,polyverse-security/go,goodlang/good,goodlang/good,derekmarcotte/go,goodlang/good,linux-on-ibm-z/go,suncycheng/go,akutz/go,codestation/go,theif519/go,goodlang/good,akutz/go,Cofyc/go,nawawi/go,nawawi/go,4ad/go,codestation/go,CAFxX/go,polyverse-security/go,suncycheng/go,cloudflare/go,Cofyc/go,CAFxX/go,4ad/go,4ad/go,golang/go,golang/go,derekmarcotte/go,Cofyc/go,theif519/go,momchil-velikov/go,Cofyc/go,ImJasonH/go,golang/go,vsekhar/elastic-go,codestation/go,goodlang/good,CAFxX/go,polyverse-security/go,polyverse-security/go,suncycheng/go,josharian/go,CAFxX/go,goodlang/good,codestation/go,4ad/go,momchil-velikov/go,ganboing/go-esx,linux-on-ibm-z/go,ganboing/go-esx,golang/go,codestation/go,derekmarcotte/go,cloudflare/go,nawawi/go,CAFxX/go,linux-on-ibm-z/go,linux-on-ibm-z/go,polyverse-security/go,goodlang/good,4ad/go,CAFxX/go,theif519/go,momchil-velikov/go,codestation/go,golang/go,CAFxX/go,vsekhar/elastic-go,nawawi/go,vsekhar/elastic-go,ganboing/go-esx,Cofyc/go,4ad/go,nawawi/go,cloudflare/go,Cofyc/go,josharian/go,polyverse-security/go,vsekhar/elastic-go,akutz/go,goodlang/good,akutz/go,josharian/go,Cofyc/go,josharian/go,cloudflare/go,ImJasonH/go,theif519/go,cloudflare/go,derekmarcotte/go,codestation/go,linux-on-ibm-z/go,akutz/go,derekmarcotte/go,polyverse-security/go,josharian/go,suncycheng/go,suncycheng/go,ImJasonH/go,cloudflare/go,polyverse-security/go,Cofyc/go,derekmarcotte/go,theif519/go,momchil-velikov/go,ganboing/go-esx,4ad/go,ganboing/go-esx,theif519/go,linux-on-ibm-z/go,momchil-velikov/go,vsekhar/elastic-go,ImJasonH/go,codestation/go,derekmarcotte/go,akutz/go,nawawi/go,vsekhar/elastic-go,4ad/go,theif519/go,ImJasonH/go,josharian/go,golang/go,linux-on-ibm-z/go,vsekhar/elastic-go,momchil-velikov/go,ganboing/go-esx,ImJasonH/go,suncycheng/go,suncycheng/go,cloudflare/go,golang/go,linux-on-ibm-z/go,nawawi/go,ganboing/go-esx,vsekhar/elastic-go,momchil-velikov/go,derekmarcotte/go,theif519/go,akutz/go