crypto/tls: fix vet issues again
crypto/tls: fix vet issues again

While we're here, use test[%d] in place of #%d.

Change-Id: Ie30afcab9673e78d3ea7ca80f5e662fbea897488
Reviewed-on: https://go-review.googlesource.com/31936
Run-TryBot: Josh Bleecher Snyder <cdc248cc4d32e4fbfe04e45228163bcecd48a0b9@gmail.com>
TryBot-Result: Gobot Gobot <66cb808b70d30c07676d5e946fee83fd561249e5@golang.org>
Reviewed-by: Brad Fitzpatrick <ae9783c0b0efc69cd85ab025ddd17aa44cdc4aa5@golang.org>

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