mungegithub: Fix comment regex to NOT repost
mungegithub: Fix comment regex to NOT repost

The regex to find that we have already added a warning is broken
(because of a change in punctuation). This is causing the mungebot to
repost the warning every time.

Fixing the regex will remove previous comments and prevent the bot from
posting too much.

k8s-packages-power/contrib,kskalski/contrib,moul/contrib,piosz/contrib,hongchaodeng/contrib,girishkalele/contrib,verb/contrib,ixdy/contrib,kow3ns/contrib,caesarxuchao/contrib,krzyzacy/contrib,spxtr/contrib,vishpat/contrib,olark/kubernetes-contrib,rmmh/kubernetes-contrib,ixdy/kubernetes-contrib,rmmh/kubernetes-contrib,kow3ns/contrib,marketlogicsoftware/contrib,jcmoraisjr/k8s-contrib,kow3ns/contrib,ixdy/kubernetes-contrib,upmc-enterprises/contrib,lewislyou/contrib,mikedanese/contrib,ingvagabund/contrib,piosz/contrib,eparis/contrib,jasonbrooks/contrib,luxas/contrib,hongchaodeng/contrib,micheleorsi/contrib,hongchaodeng/contrib,foxish/contrib,krzyzacy/contrib,kow3ns/contrib,Wattpad/kubernetes-contrib,grodrigues3/contrib,mikedanese/contrib,xialonglee/contrib,lewislyou/contrib,xialonglee/contrib,hongchaodeng/contrib,devlinmr/contrib,eparis/contrib,jasonbrooks/contrib,girishkalele/contrib,spxtr/contrib,jcmoraisjr/k8s-contrib,widgetpl/contrib,girishkalele/contrib,eparis/contrib,Wattpad/kubernetes-contrib,vishpat/contrib,marketlogicsoftware/contrib,pwittrock/contrib,eastbanctech/kubernetes-contrib,Q-Lee/contrib,foxish/contrib,jasonbrooks/contrib,eparis/contrib,ixdy/kubernetes-contrib,eastbanctech/kubernetes-contrib,widgetpl/contrib,Pensu/contrib,widgetpl/contrib,aledbf/contrib,rchicoli/kubernetes-contrib,rchicoli/kubernetes-contrib,danushkaf/contrib,devlinmr/contrib,grodrigues3/contrib,pwittrock/contrib,mikedanese/contrib,rchicoli/kubernetes-contrib,ixdy/contrib,cdemers/contrib,olark/kubernetes-contrib,vishpat/contrib,krzyzacy/contrib,danushkaf/contrib,marketlogicsoftware/contrib,vishpat/contrib,spxtr/contrib,micheleorsi/contrib,widgetpl/contrib,ixdy/kubernetes-contrib,pwittrock/contrib,cdemers/contrib,x13n/contrib,thockin/contrib,thockin/contrib,Wattpad/kubernetes-contrib,ingvagabund/contrib,foxish/contrib,Pensu/contrib,kow3ns/contrib,Q-Lee/contrib,pwittrock/contrib,moul/contrib,danushkaf/contrib,x13n/contrib,rchicoli/kubernetes-contrib,kskalski/contrib,verb/contrib,Pensu/contrib,xialonglee/contrib,x13n/contrib,cdemers/contrib,moul/contrib,devlinmr/contrib,x13n/contrib,x13n/contrib,lewislyou/contrib,jcmoraisjr/k8s-contrib,rmmh/kubernetes-contrib,danushkaf/contrib,jasonbrooks/contrib,marketlogicsoftware/contrib,micheleorsi/contrib,kskalski/contrib,krzyzacy/contrib,verb/contrib,kskalski/contrib,piosz/contrib,aledbf/contrib,jcmoraisjr/k8s-contrib,thockin/contrib,foxish/contrib,olark/kubernetes-contrib,micheleorsi/contrib,luxas/contrib,Wattpad/kubernetes-contrib,girishkalele/contrib,upmc-enterprises/contrib,caesarxuchao/contrib,moul/contrib,olark/kubernetes-contrib,cdemers/contrib,foxish/contrib,x13n/contrib,rchicoli/kubernetes-contrib,pwittrock/contrib,Q-Lee/contrib,olark/kubernetes-contrib,devlinmr/contrib,Q-Lee/contrib,rmmh/kubernetes-contrib,jcmoraisjr/k8s-contrib,micheleorsi/contrib,Q-Lee/contrib,upmc-enterprises/contrib,olark/kubernetes-contrib,eparis/contrib,pwittrock/contrib,cdemers/contrib,cdemers/contrib,verb/contrib,devlinmr/contrib,marketlogicsoftware/contrib,Wattpad/kubernetes-contrib,eastbanctech/kubernetes-contrib,devlinmr/contrib,moul/contrib,eastbanctech/kubernetes-contrib,aledbf/contrib,spxtr/contrib,k8s-packages-power/contrib,k8s-packages-power/contrib,foxish/contrib,k8s-packages-power/contrib,ingvagabund/contrib,caesarxuchao/contrib,k8s-packages-power/contrib,danushkaf/contrib,grodrigues3/contrib,upmc-enterprises/contrib,verb/contrib,girishkalele/contrib,spxtr/contrib,upmc-enterprises/contrib,girishkalele/contrib,caesarxuchao/contrib,hongchaodeng/contrib,danushkaf/contrib,thockin/contrib,eastbanctech/kubernetes-contrib,xialonglee/contrib,krzyzacy/contrib,Pensu/contrib,luxas/contrib,mikedanese/contrib,ingvagabund/contrib,mikedanese/contrib,grodrigues3/contrib,ingvagabund/contrib,micheleorsi/contrib,lewislyou/contrib,vishpat/contrib,jcmoraisjr/k8s-contrib,Pensu/contrib,Q-Lee/contrib,luxas/contrib,thockin/contrib,spxtr/contrib,piosz/contrib,jasonbrooks/contrib,hongchaodeng/contrib,upmc-enterprises/contrib,aledbf/contrib,jasonbrooks/contrib,vishpat/contrib,eparis/contrib,mikedanese/contrib,ixdy/contrib,rmmh/kubernetes-contrib,widgetpl/contrib,aledbf/contrib,piosz/contrib,lewislyou/contrib,krzyzacy/contrib,widgetpl/contrib,rchicoli/kubernetes-contrib,grodrigues3/contrib,kskalski/contrib,xialonglee/contrib,verb/contrib,marketlogicsoftware/contrib,luxas/contrib,ixdy/kubernetes-contrib,kow3ns/contrib,kskalski/contrib,xialonglee/contrib,grodrigues3/contrib,piosz/contrib,ixdy/kubernetes-contrib,thockin/contrib,aledbf/contrib,luxas/contrib,Wattpad/kubernetes-contrib,eastbanctech/kubernetes-contrib,lewislyou/contrib,k8s-packages-power/contrib,ingvagabund/contrib,rmmh/kubernetes-contrib,Pensu/contrib,caesarxuchao/contrib,caesarxuchao/contrib