syscall: add yet more TestGetfsstat debugging
syscall: add yet more TestGetfsstat debugging

Updates #16937

Change-Id: I98aa203176f8f2ca2fcca6e334a65bc60d6f824d
Reviewed-on: https://go-review.googlesource.com/28535
Reviewed-by: Ian Lance Taylor <87e9c6d529889242b7e184afb632328636553ab4@golang.org>

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