Fix format.py to look for .bat on Windows
Fix format.py to look for .bat on Windows

https://github.com/dotnet/jitutils/pull/56 changed the file extension for
the script files on Windows to be .bat, so the format.py script needs to
be updated.

krk/coreclr,botaberg/coreclr,alexperovich/coreclr,YongseopKim/coreclr,wateret/coreclr,rartemev/coreclr,parjong/coreclr,tijoytom/coreclr,jamesqo/coreclr,gkhanna79/coreclr,JonHanna/coreclr,hseok-oh/coreclr,krk/coreclr,ragmani/coreclr,JonHanna/coreclr,krytarowski/coreclr,cshung/coreclr,sagood/coreclr,alexperovich/coreclr,dpodder/coreclr,JonHanna/coreclr,wtgodbe/coreclr,pgavlin/coreclr,tijoytom/coreclr,yizhang82/coreclr,poizan42/coreclr,cshung/coreclr,YongseopKim/coreclr,rartemev/coreclr,alexperovich/coreclr,neurospeech/coreclr,qiudesong/coreclr,sagood/coreclr,cydhaselton/coreclr,mmitche/coreclr,JonHanna/coreclr,sagood/coreclr,neurospeech/coreclr,James-Ko/coreclr,poizan42/coreclr,cshung/coreclr,yeaicc/coreclr,cydhaselton/coreclr,dpodder/coreclr,wateret/coreclr,sagood/coreclr,cydhaselton/coreclr,krytarowski/coreclr,ruben-ayrapetyan/coreclr,pgavlin/coreclr,rartemev/coreclr,parjong/coreclr,dasMulli/coreclr,parjong/coreclr,cmckinsey/coreclr,mskvortsov/coreclr,JonHanna/coreclr,yizhang82/coreclr,tijoytom/coreclr,pgavlin/coreclr,neurospeech/coreclr,cmckinsey/coreclr,JosephTremoulet/coreclr,ragmani/coreclr,jamesqo/coreclr,pgavlin/coreclr,botaberg/coreclr,dpodder/coreclr,gkhanna79/coreclr,YongseopKim/coreclr,gkhanna79/coreclr,James-Ko/coreclr,Dmitry-Me/coreclr,poizan42/coreclr,tijoytom/coreclr,kyulee1/coreclr,Dmitry-Me/coreclr,rartemev/coreclr,hseok-oh/coreclr,sjsinju/coreclr,parjong/coreclr,yizhang82/coreclr,qiudesong/coreclr,mmitche/coreclr,JosephTremoulet/coreclr,russellhadley/coreclr,mmitche/coreclr,ragmani/coreclr,kyulee1/coreclr,sjsinju/coreclr,James-Ko/coreclr,wateret/coreclr,wateret/coreclr,kyulee1/coreclr,YongseopKim/coreclr,sagood/coreclr,jamesqo/coreclr,hseok-oh/coreclr,sjsinju/coreclr,wtgodbe/coreclr,AlexGhiondea/coreclr,dasMulli/coreclr,YongseopKim/coreclr,rartemev/coreclr,AlexGhiondea/coreclr,pgavlin/coreclr,sjsinju/coreclr,botaberg/coreclr,gkhanna79/coreclr,ragmani/coreclr,ragmani/coreclr,gkhanna79/coreclr,hseok-oh/coreclr,Dmitry-Me/coreclr,kyulee1/coreclr,AlexGhiondea/coreclr,krytarowski/coreclr,AlexGhiondea/coreclr,botaberg/coreclr,wtgodbe/coreclr,neurospeech/coreclr,dpodder/coreclr,ruben-ayrapetyan/coreclr,parjong/coreclr,yeaicc/coreclr,ragmani/coreclr,Dmitry-Me/coreclr,wateret/coreclr,cshung/coreclr,James-Ko/coreclr,yeaicc/coreclr,JosephTremoulet/coreclr,wateret/coreclr,jamesqo/coreclr,sjsinju/coreclr,Dmitry-Me/coreclr,yeaicc/coreclr,James-Ko/coreclr,krytarowski/coreclr,alexperovich/coreclr,hseok-oh/coreclr,ruben-ayrapetyan/coreclr,tijoytom/coreclr,cydhaselton/coreclr,russellhadley/coreclr,botaberg/coreclr,alexperovich/coreclr,krytarowski/coreclr,krytarowski/coreclr,botaberg/coreclr,dpodder/coreclr,JosephTremoulet/coreclr,ruben-ayrapetyan/coreclr,dasMulli/coreclr,jamesqo/coreclr,poizan42/coreclr,dasMulli/coreclr,Dmitry-Me/coreclr,poizan42/coreclr,mskvortsov/coreclr,AlexGhiondea/coreclr,sagood/coreclr,russellhadley/coreclr,mskvortsov/coreclr,mmitche/coreclr,wtgodbe/coreclr,poizan42/coreclr,mskvortsov/coreclr,cmckinsey/coreclr,rartemev/coreclr,dasMulli/coreclr,cmckinsey/coreclr,kyulee1/coreclr,cmckinsey/coreclr,krk/coreclr,mskvortsov/coreclr,kyulee1/coreclr,ruben-ayrapetyan/coreclr,dpodder/coreclr,hseok-oh/coreclr,qiudesong/coreclr,mskvortsov/coreclr,yeaicc/coreclr,russellhadley/coreclr,yizhang82/coreclr,neurospeech/coreclr,yizhang82/coreclr,cshung/coreclr,cydhaselton/coreclr,tijoytom/coreclr,sjsinju/coreclr,cshung/coreclr,Dmitry-Me/coreclr,russellhadley/coreclr,neurospeech/coreclr,yeaicc/coreclr,jamesqo/coreclr,krk/coreclr,yeaicc/coreclr,qiudesong/coreclr,krk/coreclr,YongseopKim/coreclr,dasMulli/coreclr,russellhadley/coreclr,cmckinsey/coreclr,yizhang82/coreclr,gkhanna79/coreclr,AlexGhiondea/coreclr,ruben-ayrapetyan/coreclr,cydhaselton/coreclr,JosephTremoulet/coreclr,wtgodbe/coreclr,parjong/coreclr,James-Ko/coreclr,dasMulli/coreclr,pgavlin/coreclr,krk/coreclr,mmitche/coreclr,qiudesong/coreclr,JonHanna/coreclr,JosephTremoulet/coreclr,cmckinsey/coreclr,qiudesong/coreclr,mmitche/coreclr,wtgodbe/coreclr,alexperovich/coreclr