FIX: user correct variable for iteration on last block calulation (fixes #255)

frontend/src/views/dnsvs/BCDRecords.vue

@@ -796,7 +796,7 @@ export default {
             const containing_blocks = []
             let last_chg_ip = cur + 1
             let last_was_reserved = ipaddress.int_to_ip(last_chg_ip) in this.reserved_addrs_by_ip
-            for (var k = 1; i < hard_maximum - cur; i++) {
+            for (var k = 1; k < hard_maximum - cur; k++) {
               if (ipaddress.int_to_ip(cur + k) in this.reserved_addrs_by_ip) {
                 if (!last_was_reserved) {
                   containing_blocks.push({