misc/cgo/testsanitizers: check linux major/minor versions
misc/cgo/testsanitizers: check linux major/minor versions

Fix a typo in de5b386; using `$ver` to determine linux major/minor
versions would produce those for clang, use `$linuxver` instead.

Updates #12898.

Change-Id: I2c8e84ad02749fceaa958afd65e558bb0b08dddb
Reviewed-on: https://go-review.googlesource.com/17323
Reviewed-by: Ian Lance Taylor <87e9c6d529889242b7e184afb632328636553ab4@golang.org>
Run-TryBot: Ian Lance Taylor <87e9c6d529889242b7e184afb632328636553ab4@golang.org>
TryBot-Result: Gobot Gobot <66cb808b70d30c07676d5e946fee83fd561249e5@golang.org>

CAFxX/go,Endika/go,kim-racktop/go,golang/go,vsekhar/elastic-go,codestation/go,codestation/go,vanloswang/go,4ad/go,cloudflare/go,miolini/go,binarycrusader/go,josharian/go,sndnvaps/go,ganboing/go-esx,binarycrusader/go,sndnvaps/go,akutz/go,cyberroadie/go,Cofyc/go,sndnvaps/go,suncycheng/go,suncycheng/go,josharian/go,theif519/go,momchil-velikov/go,akutz/go,polyverse-security/go,cloudflare/go,kim-racktop/go,ganboing/go-esx,nawawi/go,kim-racktop/go,CAFxX/go,cyberroadie/go,Endika/go,4ad/go,theif519/go,ganboing/go-esx,fjballest/golang,mwhudson/go,miolini/go,fjballest/golang,akutz/go,ImJasonH/go,ImJasonH/go,4ad/go,Endika/go,vanloswang/go,theif519/go,odeke-em/go,binarycrusader/go,christopher-henderson/Go,nawawi/go,derekmarcotte/go,deft-code/go,ImJasonH/go,Samurais/go,CAFxX/go,theif519/go,linux-on-ibm-z/go,roth1002/go,linux-on-ibm-z/go,CAFxX/go,kim-racktop/go,miolini/go,polyverse-security/go,golang/go,nawawi/go,odeke-em/go,momchil-velikov/go,nawawi/go,momchil-velikov/go,vsekhar/elastic-go,Endika/go,miolini/go,momchil-velikov/go,odeke-em/go,Cofyc/go,fjballest/golang,vsekhar/elastic-go,golang/go,theif519/go,vanloswang/go,deft-code/go,suncycheng/go,odeke-em/go,cloudflare/go,deft-code/go,odeke-em/go,CAFxX/go,goodlang/good,miolini/go,Samurais/go,suncycheng/go,ImJasonH/go,fjballest/golang,momchil-velikov/go,fjballest/golang,cloudflare/go,nawawi/go,Endika/go,odeke-em/go,linux-on-ibm-z/go,theif519/go,4ad/go,ImJasonH/go,mwhudson/go,odeke-em/go,cyberroadie/go,cyberroadie/go,Cofyc/go,kim-racktop/go,ImJasonH/go,sndnvaps/go,Samurais/go,4ad/go,polyverse-security/go,cloudflare/go,odeke-em/go,suncycheng/go,roth1002/go,4ad/go,vanloswang/go,goodlang/good,sndnvaps/go,derekmarcotte/go,deft-code/go,mwhudson/go,kim-racktop/go,derekmarcotte/go,Cofyc/go,suncycheng/go,josharian/go,golang/go,binarycrusader/go,roth1002/go,momchil-velikov/go,polyverse-security/go,Cofyc/go,binarycrusader/go,akutz/go,cloudflare/go,goodlang/good,kim-racktop/go,sndnvaps/go,Samurais/go,sndnvaps/go,akutz/go,Samurais/go,goodlang/good,suncycheng/go,golang/go,nawawi/go,nawawi/go,codestation/go,josharian/go,derekmarcotte/go,polyverse-security/go,josharian/go,kim-racktop/go,fjballest/golang,golang/go,ImJasonH/go,goodlang/good,mwhudson/go,CAFxX/go,vsekhar/elastic-go,vanloswang/go,linux-on-ibm-z/go,Endika/go,cyberroadie/go,4ad/go,polyverse-security/go,CAFxX/go,theif519/go,miolini/go,ImJasonH/go,ganboing/go-esx,mwhudson/go,linux-on-ibm-z/go,josharian/go,momchil-velikov/go,linux-on-ibm-z/go,Cofyc/go,codestation/go,Samurais/go,binarycrusader/go,ganboing/go-esx,codestation/go,mwhudson/go,josharian/go,miolini/go,linux-on-ibm-z/go,fjballest/golang,vanloswang/go,miolini/go,akutz/go,linux-on-ibm-z/go,cyberroadie/go,Endika/go,roth1002/go,derekmarcotte/go,mwhudson/go,deft-code/go,vsekhar/elastic-go,roth1002/go,derekmarcotte/go,deft-code/go,vanloswang/go,vsekhar/elastic-go,sndnvaps/go,derekmarcotte/go,Cofyc/go,vsekhar/elastic-go,goodlang/good,deft-code/go,Samurais/go,golang/go,ganboing/go-esx,akutz/go,vsekhar/elastic-go,codestation/go,codestation/go,vanloswang/go,fjballest/golang,Samurais/go,momchil-velikov/go,Cofyc/go,4ad/go,roth1002/go,Endika/go,akutz/go,cloudflare/go,cyberroadie/go,goodlang/good,polyverse-security/go,goodlang/good,golang/go,binarycrusader/go,CAFxX/go,mwhudson/go,cyberroadie/go,deft-code/go,nawawi/go,ganboing/go-esx,suncycheng/go,polyverse-security/go,derekmarcotte/go,cloudflare/go,josharian/go,codestation/go,roth1002/go,ganboing/go-esx,roth1002/go,binarycrusader/go,theif519/go