cherrypick: Do not use --fork-base in git merge-base
cherrypick: Do not use --fork-base in git merge-base

The version of git in wheezy doesn't have fork-base. The version in
jessie doesn't work correctly.

cdemers/contrib,mikedanese/contrib,ixdy/contrib,vishpat/contrib,danushkaf/contrib,jasonbishop/contrib,grodrigues3/contrib,caesarxuchao/contrib,atosatto/kubernetes-contrib,freehan/contrib,Wattpad/kubernetes-contrib,cdemers/contrib,aledbf/contrib,andrew-j-price/contrib,girishkalele/contrib,x13n/contrib,jojimt/contrib,ixdy/contrib,jojimt/contrib,Q-Lee/contrib,eparis/contrib,Pensu/contrib,lewislyou/contrib,eparis/contrib,cdemers/contrib,ingvagabund/contrib,fcvarela/contrib,pwittrock/contrib,lavalamp/contrib,andrew-j-price/contrib,danehans/contrib,aledbf/contrib,verb/contrib,ixdy/kubernetes-contrib,Q-Lee/contrib,moul/contrib,x13n/contrib,lavalamp/contrib,caesarxuchao/contrib,Pensu/contrib,luxas/contrib,upmc-enterprises/contrib,lewislyou/contrib,stephenrlouie/contrib,krousey/contrib,timstclair/kube-contrib,kokhang/contrib,micheleorsi/contrib,xialonglee/contrib,foxish/contrib,rchicoli/kubernetes-contrib,eastbanctech/kubernetes-contrib,timstclair/kube-contrib,spxtr/contrib,Wattpad/kubernetes-contrib,micheleorsi/contrib,marketlogicsoftware/contrib,simonswine/kubernetes-contrib,aledbf/contrib,xialonglee/contrib,spxtr/contrib,eparis/contrib,k8s-packages-power/contrib,rchicoli/kubernetes-contrib,upmc-enterprises/contrib,chiradeep/contrib,freehan/contrib,micheleorsi/contrib,jdavis7257/contrib,devlinmr/contrib,k8s-packages-power/contrib,ingvagabund/contrib,simonswine/kubernetes-contrib,adamschaub/contrib,krzyzacy/contrib,devlinmr/contrib,mikedanese/contrib,jasonbishop/contrib,devlinmr/contrib,hongchaodeng/contrib,olark/kubernetes-contrib,marketlogicsoftware/contrib,girishkalele/contrib,verb/contrib,micheleorsi/contrib,kokhang/contrib,kokhang/contrib,krousey/contrib,thockin/contrib,vishpat/contrib,gouyang/contrib,upmc-enterprises/contrib,thockin/contrib,ixdy/kubernetes-contrib,danehans/contrib,widgetpl/contrib,fcvarela/contrib,hongchaodeng/contrib,luxas/contrib,Q-Lee/contrib,spxtr/contrib,gmarek/contrib,eparis/contrib,luxas/contrib,gmarek/contrib,upmc-enterprises/contrib,jcmoraisjr/k8s-contrib,Pensu/contrib,stephenrlouie/contrib,jasonbrooks/contrib,danushkaf/contrib,upmc-enterprises/contrib,pwittrock/contrib,moul/contrib,endocode/contrib,olark/kubernetes-contrib,lewislyou/contrib,kow3ns/contrib,grodrigues3/contrib,rchicoli/kubernetes-contrib,kskalski/contrib,girishkalele/contrib,danushkaf/contrib,widgetpl/contrib,adamschaub/contrib,gouyang/contrib,krzyzacy/contrib,ixdy/kubernetes-contrib,piosz/contrib,lavalamp/contrib,chiradeep/contrib,jcmoraisjr/k8s-contrib,aknuds1/contrib,aknuds1/contrib,foxish/contrib,chiradeep/contrib,marketlogicsoftware/contrib,Q-Lee/contrib,pwittrock/contrib,hongchaodeng/contrib,Q-Lee/contrib,pwittrock/contrib,gmarek/contrib,jdavis7257/contrib,stephenrlouie/contrib,piosz/contrib,moul/contrib,jojimt/contrib,Pensu/contrib,eparis/contrib,danushkaf/contrib,mikedanese/contrib,jcmoraisjr/k8s-contrib,verb/contrib,kokhang/contrib,vishpat/contrib,aknuds1/contrib,k8s-packages-power/contrib,andrew-j-price/contrib,luxas/contrib,krousey/contrib,eastbanctech/kubernetes-contrib,atosatto/kubernetes-contrib,rmmh/kubernetes-contrib,k8s-packages-power/contrib,timstclair/kube-contrib,aknuds1/contrib,luxas/contrib,widgetpl/contrib,ixdy/kubernetes-contrib,foxish/contrib,Wattpad/kubernetes-contrib,atosatto/kubernetes-contrib,cdemers/contrib,freehan/contrib,simonswine/kubernetes-contrib,adamschaub/contrib,xialonglee/contrib,piosz/contrib,lavalamp/contrib,grodrigues3/contrib,stephenrlouie/contrib,devlinmr/contrib,pwittrock/contrib,Pensu/contrib,xialonglee/contrib,simonswine/kubernetes-contrib,jasonbrooks/contrib,Wattpad/kubernetes-contrib,timstclair/kube-contrib,Wattpad/kubernetes-contrib,kskalski/contrib,rchicoli/kubernetes-contrib,freehan/contrib,endocode/contrib,girishkalele/contrib,k8s-packages-power/contrib,piosz/contrib,mikedanese/contrib,endocode/contrib,k8s-packages-power/contrib,gouyang/contrib,eastbanctech/kubernetes-contrib,x13n/contrib,jcmoraisjr/k8s-contrib,x13n/contrib,jasonbishop/contrib,krousey/contrib,freehan/contrib,ixdy/kubernetes-contrib,rmmh/kubernetes-contrib,eparis/contrib,stephenrlouie/contrib,marketlogicsoftware/contrib,simonswine/kubernetes-contrib,danehans/contrib,eastbanctech/kubernetes-contrib,thockin/contrib,widgetpl/contrib,aknuds1/contrib,chiradeep/contrib,ixdy/contrib,gemini-project/contrib,xialonglee/contrib,marketlogicsoftware/contrib,endocode/contrib,verb/contrib,adamschaub/contrib,jdavis7257/contrib,gemini-project/contrib,caesarxuchao/contrib,caesarxuchao/contrib,moul/contrib,jojimt/contrib,vishpat/contrib,Wattpad/kubernetes-contrib,grodrigues3/contrib,kow3ns/contrib,marketlogicsoftware/contrib,grodrigues3/contrib,timstclair/kube-contrib,jasonbrooks/contrib,rmmh/kubernetes-contrib,Pensu/contrib,hongchaodeng/contrib,lavalamp/contrib,olark/kubernetes-contrib,cdemers/contrib,devlinmr/contrib,krzyzacy/contrib,eastbanctech/kubernetes-contrib,gemini-project/contrib,foxish/contrib,lavalamp/contrib,hongchaodeng/contrib,kskalski/contrib,hongchaodeng/contrib,spxtr/contrib,adamschaub/contrib,rmmh/kubernetes-contrib,foxish/contrib,rchicoli/kubernetes-contrib,jdavis7257/contrib,piosz/contrib,thockin/contrib,eastbanctech/kubernetes-contrib,moul/contrib,spxtr/contrib,kokhang/contrib,piosz/contrib,fcvarela/contrib,simonswine/kubernetes-contrib,vishpat/contrib,rmmh/kubernetes-contrib,krousey/contrib,ixdy/kubernetes-contrib,danehans/contrib,danehans/contrib,gouyang/contrib,x13n/contrib,aknuds1/contrib,girishkalele/contrib,atosatto/kubernetes-contrib,krzyzacy/contrib,fcvarela/contrib,chiradeep/contrib,verb/contrib,ingvagabund/contrib,girishkalele/contrib,jasonbishop/contrib,gemini-project/contrib,jojimt/contrib,kow3ns/contrib,atosatto/kubernetes-contrib,fcvarela/contrib,thockin/contrib,ingvagabund/contrib,caesarxuchao/contrib,rchicoli/kubernetes-contrib,kskalski/contrib,jasonbishop/contrib,lewislyou/contrib,mikedanese/contrib,vishpat/contrib,andrew-j-price/contrib,ingvagabund/contrib,widgetpl/contrib,gemini-project/contrib,chiradeep/contrib,upmc-enterprises/contrib,pwittrock/contrib,jcmoraisjr/k8s-contrib,gmarek/contrib,jdavis7257/contrib,jojimt/contrib,jasonbrooks/contrib,krousey/contrib,jasonbrooks/contrib,thockin/contrib,lewislyou/contrib,caesarxuchao/contrib,andrew-j-price/contrib,spxtr/contrib,rmmh/kubernetes-contrib,foxish/contrib,timstclair/kube-contrib,krzyzacy/contrib,atosatto/kubernetes-contrib,stephenrlouie/contrib,chiradeep/contrib,olark/kubernetes-contrib,aledbf/contrib,krzyzacy/contrib,andrew-j-price/contrib,ingvagabund/contrib,gouyang/contrib,danushkaf/contrib,danushkaf/contrib,xialonglee/contrib,jasonbishop/contrib,gemini-project/contrib,kow3ns/contrib,devlinmr/contrib,kskalski/contrib,grodrigues3/contrib,x13n/contrib,aledbf/contrib,adamschaub/contrib,gmarek/contrib,jdavis7257/contrib,olark/kubernetes-contrib,jasonbrooks/contrib,fcvarela/contrib,Q-Lee/contrib,kow3ns/contrib,widgetpl/contrib,cdemers/contrib,mikedanese/contrib,micheleorsi/contrib,verb/contrib,luxas/contrib,gmarek/contrib,kokhang/contrib,kskalski/contrib,kow3ns/contrib,freehan/contrib,gouyang/contrib,micheleorsi/contrib,lewislyou/contrib,jcmoraisjr/k8s-contrib,endocode/contrib,danehans/contrib,aledbf/contrib,olark/kubernetes-contrib,endocode/contrib