doc: update size of "hello, world" binary in FAQ
doc: update size of "hello, world" binary in FAQ

Fixes #17159

Change-Id: I44d7081ef7a973dcd1cc2eb7124e3454c94bc6e3
Reviewed-on: https://go-review.googlesource.com/31770
Reviewed-by: Brad Fitzpatrick <ae9783c0b0efc69cd85ab025ddd17aa44cdc4aa5@golang.org>

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