crypto/dsa: gofmt
crypto/dsa: gofmt

Somehow this file didn't get gofmted after the last change, which
interferes with merges.

Change-Id: I965cfdbf27a01124a6ed300be9687ff84f68f9a1
Reviewed-on: https://go-review.googlesource.com/35064
Reviewed-by: Matt Layher <76528ff2e917253aa2211f68e4ca60b5b846dcf5@gmail.com>
Reviewed-by: Adam Langley <db68fba232b2c49ed3e9d3081df349dde7b61dfd@chromium.org>
Reviewed-by: Brad Fitzpatrick <ae9783c0b0efc69cd85ab025ddd17aa44cdc4aa5@golang.org>
Run-TryBot: Matt Layher <76528ff2e917253aa2211f68e4ca60b5b846dcf5@gmail.com>
TryBot-Result: Gobot Gobot <66cb808b70d30c07676d5e946fee83fd561249e5@golang.org>

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