net/http: fix parameter name in comment
net/http: fix parameter name in comment

Fixes #21077

Change-Id: Ic61d7313907f58ff4027fd2eee1ddb8c1656304d
Reviewed-on: https://go-review.googlesource.com/49712
Reviewed-by: Dmitri Shuralyov <0c2a7749d909c8353e59c3f9c6a4d19a5ce000c1@gmail.com>

codestation/go,codestation/go,cloudflare/go,CAFxX/go,josharian/go,Cofyc/go,akutz/go,Cofyc/go,akutz/go,codestation/go,vsekhar/elastic-go,akutz/go,golang/go,codestation/go,nawawi/go,Cofyc/go,cloudflare/go,CAFxX/go,josharian/go,CAFxX/go,Cofyc/go,nawawi/go,josharian/go,akutz/go,golang/go,codestation/go,Cofyc/go,cloudflare/go,cloudflare/go,cloudflare/go,josharian/go,codestation/go,vsekhar/elastic-go,golang/go,nawawi/go,CAFxX/go,akutz/go,akutz/go,nawawi/go,polyverse-security/go,golang/go,josharian/go,Cofyc/go,vsekhar/elastic-go,Cofyc/go,CAFxX/go,vsekhar/elastic-go,CAFxX/go,akutz/go,vsekhar/elastic-go,polyverse-security/go,nawawi/go,josharian/go,nawawi/go,polyverse-security/go,codestation/go,golang/go,akutz/go,polyverse-security/go,vsekhar/elastic-go,josharian/go,CAFxX/go,polyverse-security/go,cloudflare/go,nawawi/go,nawawi/go,polyverse-security/go,codestation/go,cloudflare/go,polyverse-security/go,polyverse-security/go,vsekhar/elastic-go,CAFxX/go,golang/go,golang/go,cloudflare/go,vsekhar/elastic-go,golang/go,Cofyc/go,josharian/go,christopher-henderson/Go