Use better names for build legs
Use better names for build legs

The shorter job name means the matrix name is visible in the list.

KirillOsenkov/roslyn,jmarolf/roslyn,brettfo/roslyn,dotnet/roslyn,jasonmalinowski/roslyn,jmarolf/roslyn,panopticoncentral/roslyn,mavasani/roslyn,ErikSchierboom/roslyn,reaction1989/roslyn,heejaechang/roslyn,reaction1989/roslyn,CyrusNajmabadi/roslyn,dotnet/roslyn,KirillOsenkov/roslyn,KevinRansom/roslyn,tmat/roslyn,swaroop-sridhar/roslyn,dotnet/roslyn,tannergooding/roslyn,wvdd007/roslyn,aelij/roslyn,AmadeusW/roslyn,wvdd007/roslyn,shyamnamboodiripad/roslyn,jasonmalinowski/roslyn,physhi/roslyn,genlu/roslyn,AlekseyTs/roslyn,physhi/roslyn,stephentoub/roslyn,agocke/roslyn,nguerrera/roslyn,heejaechang/roslyn,AlekseyTs/roslyn,jasonmalinowski/roslyn,tmat/roslyn,stephentoub/roslyn,stephentoub/roslyn,mavasani/roslyn,abock/roslyn,nguerrera/roslyn,bartdesmet/roslyn,swaroop-sridhar/roslyn,eriawan/roslyn,gafter/roslyn,davkean/roslyn,physhi/roslyn,brettfo/roslyn,CyrusNajmabadi/roslyn,sharwell/roslyn,mgoertz-msft/roslyn,aelij/roslyn,eriawan/roslyn,diryboy/roslyn,mavasani/roslyn,heejaechang/roslyn,abock/roslyn,davkean/roslyn,diryboy/roslyn,reaction1989/roslyn,KevinRansom/roslyn,sharwell/roslyn,jmarolf/roslyn,mgoertz-msft/roslyn,mgoertz-msft/roslyn,nguerrera/roslyn,swaroop-sridhar/roslyn,bartdesmet/roslyn,shyamnamboodiripad/roslyn,tannergooding/roslyn,KirillOsenkov/roslyn,shyamnamboodiripad/roslyn,davkean/roslyn,CyrusNajmabadi/roslyn,ErikSchierboom/roslyn,abock/roslyn,gafter/roslyn,agocke/roslyn,weltkante/roslyn,genlu/roslyn,sharwell/roslyn,aelij/roslyn,KevinRansom/roslyn,genlu/roslyn,AmadeusW/roslyn,panopticoncentral/roslyn,tmat/roslyn,weltkante/roslyn,brettfo/roslyn,wvdd007/roslyn,tannergooding/roslyn,bartdesmet/roslyn,AmadeusW/roslyn,AlekseyTs/roslyn,weltkante/roslyn,agocke/roslyn,diryboy/roslyn,eriawan/roslyn,panopticoncentral/roslyn,gafter/roslyn,ErikSchierboom/roslyn