cmd/compile: expand comment on cgo_unsafe_args in inlinine
cmd/compile: expand comment on cgo_unsafe_args in inlinine

Change-Id: Ie8fd7839806b4a6bcfac5ac1f984db7ab282c3b5
Reviewed-on: https://go-review.googlesource.com/41150
Run-TryBot: Austin Clements <7ea35d812706d9213868749011af1ed4fa2f6aa0@google.com>
Reviewed-by: David Lazar <859c8a6d485c34c743019c2e216e6c66f2ebb470@golang.org>

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