[sr-dev] dns_cache.c compiler warnings

gcc version 4.7.2 (Ubuntu/Linaro 4.7.2-2ubuntu1) CC (gcc) [kamailio] dns_cache.o dns_cache.c: In function âdns_srv_get_nxt_rrâ: dns_cache.c:2302:5: warning: âr_sums[1].r_sumâ may be used uninitialized in this function [-Wuninitialized] dns_cache.c:2302:5: warning: âr_sums[1].rrâ may be used uninitialized in this function [-Wuninitialized] dns_cache.c:2302:5: warning: âr_sums[2].r_sumâ may be used uninitialized in this function [-Wuninitialized] dns_cache.c:2302:5: warning: âr_sums[2].rrâ may be used uninitialized in this function [-Wuninitialized] dns_cache.c:2302:5: warning: âr_sums[3].r_sumâ may be used uninitialized in this function [-Wuninitialized] dns_cache.c:2302:5: warning: âr_sums[3].rrâ may be used uninitialized in this function [-Wuninitialized] dns_cache.c:2302:5: warning: âr_sums[4].r_sumâ may be used uninitialized in this function [-Wuninitialized] dns_cache.c:2302:5: warning: âr_sums[4].rrâ may be used uninitialized in this function [-Wuninitialized] dns_cache.c:2302:5: warning: âr_sums[5].r_sumâ may be used uninitialized in this function [-Wuninitialized] dns_cache.c:2302:5: warning: âr_sums[5].rrâ may be used uninitialized in this function [-Wuninitialized] dns_cache.c:2302:5: warning: âr_sums[6].r_sumâ may be used uninitialized in this function [-Wuninitialized] dns_cache.c:2302:5: warning: âr_sums[6].rrâ may be used uninitialized in this function [-Wuninitialized] dns_cache.c:2302:5: warning: âr_sums[7].r_sumâ may be used uninitialized in this function [-Wuninitialized] dns_cache.c:2302:5: warning: âr_sums[7].rrâ may be used uninitialized in this function [-Wuninitialized] dns_cache.c:2302:5: warning: âr_sums[8].r_sumâ may be used uninitialized in this function [-Wuninitialized] dns_cache.c:2302:5: warning: âr_sums[8].rrâ may be used uninitialized in this function [-Wuninitialized] dns_cache.c:2302:5: warning: âr_sums[9].r_sumâ may be used uninitialized in this function [-Wuninitialized] dns_cache.c:2302:5: warning: âr_sums[9].rrâ may be used uninitialized in this function [-Wuninitialized] dns_cache.c:2302:5: warning: âr_sums[10].r_sumâ may be used uninitialized in this function [-Wuninitialized] dns_cache.c:2302:5: warning: âr_sums[10].rrâ may be used uninitialized in this function [-Wuninitialized] dns_cache.c:2302:5: warning: âr_sums[11].r_sumâ may be used uninitialized in this function [-Wuninitialized] dns_cache.c:2302:5: warning: âr_sums[11].rrâ may be used uninitialized in this function [-Wuninitialized] dns_cache.c:2302:5: warning: âr_sums[12].r_sumâ may be used uninitialized in this function [-Wuninitialized] dns_cache.c:2302:5: warning: âr_sums[12].rrâ may be used uninitialized in this function [-Wuninitialized] dns_cache.c:2302:5: warning: âr_sums[13].r_sumâ may be used uninitialized in this function [-Wuninitialized] dns_cache.c:2302:5: warning: âr_sums[13].rrâ may be used uninitialized in this function [-Wuninitialized] dns_cache.c:2302:5: warning: âr_sums[14].r_sumâ may be used uninitialized in this function [-Wuninitialized] dns_cache.c:2302:5: warning: âr_sums[14].rrâ may be used uninitialized in this function [-Wuninitialized] dns_cache.c:2302:5: warning: âr_sums[15].r_sumâ may be used uninitialized in this function [-Wuninitialized] dns_cache.c:2302:5: warning: âr_sums[15].rrâ may be used uninitialized in this function [-Wuninitialized]