YY                171 lib/common/iso8601.c     int YY = (year - 1) % 100;
YY                172 lib/common/iso8601.c     int C = (year - 1) - YY;
YY                173 lib/common/iso8601.c     int G = YY + YY / 4;
YY                176 lib/common/iso8601.c     crm_trace("YY=%d, C=%d, G=%d", YY, C, G);