two-bucket: apply lowerCamelCase rule to variables
two-bucket: apply lowerCamelCase rule to variables

per #987
petertseng/x-common,jmluy/x-common,exercism/x-common,petertseng/x-common,jmluy/x-common,jmluy/x-common,exercism/x-common,ErikSchierboom/x-common,ErikSchierboom/x-common,rpottsoh/x-common,rpottsoh/x-common