cmd/link: fix debug message
cmd/link: fix debug message

Change-Id: I6cb0ed9b726da34106ba239b57e2da732a8e1b71
Reviewed-on: https://go-review.googlesource.com/50730
Reviewed-by: Michael Hudson-Doyle <5e87ffb38a52af6fb9a19b679e9122c7a4d601a5@canonical.com>
Reviewed-by: Avelino <8efd86fb78a56a5145ed7739dcb00c78581c5375@avelino.xxx>

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