book-store: Add missing trailing zero
book-store: Add missing trailing zero
kgengler/x-common,jmluy/x-common,petertseng/x-common,petertseng/x-common,Vankog/problem-specifications,Vankog/problem-specifications,rpottsoh/x-common,exercism/x-common,rpottsoh/x-common,exercism/x-common,ErikSchierboom/x-common,ErikSchierboom/x-common,jmluy/x-common,kgengler/x-common,jmluy/x-common