Small fix where a space was added before \n in fast-log if a xref wasn't used

src/alert-fastlog.c

@@ -122,10 +122,11 @@ TmEcode AlertFastLogIPv4(ThreadVars *tv, Packet *p, void *data, PacketQueue *pq)
         inet_ntop(AF_INET, (const void *)GET_IPV4_SRC_ADDR_PTR(p), srcip, sizeof(srcip));
         inet_ntop(AF_INET, (const void *)GET_IPV4_DST_ADDR_PTR(p), dstip, sizeof(dstip));
 
-        fprintf(aft->file_ctx->fp, "%s  [**] [%" PRIu32 ":%" PRIu32 ":%" PRIu32 "] %s [**] [Classification: %s] [Priority: %" PRIu32 "] {%" PRIu32 "} %s:%" PRIu32 " -> %s:%" PRIu32 " ",
+        fprintf(aft->file_ctx->fp, "%s  [**] [%" PRIu32 ":%" PRIu32 ":%" PRIu32 "] %s [**] [Classification: %s] [Priority: %" PRIu32 "] {%" PRIu32 "} %s:%" PRIu32 " -> %s:%" PRIu32 "",
                 timebuf, pa->gid, pa->sid, pa->rev, pa->msg, pa->class_msg, pa->prio, IPV4_GET_IPPROTO(p), srcip, p->sp, dstip, p->dp);
 
         if(pa->references != NULL)  {
+            fprintf(aft->file_ctx->fp," ");
             for (ref = pa->references; ref != NULL; ref = ref->next)   {
                 fprintf(aft->file_ctx->fp,"[Xref => %s%s]", ref->key, ref->reference);
             }
@@ -163,10 +164,11 @@ TmEcode AlertFastLogIPv6(ThreadVars *tv, Packet *p, void *data, PacketQueue *pq)
         inet_ntop(AF_INET6, (const void *)GET_IPV6_SRC_ADDR(p), srcip, sizeof(srcip));
         inet_ntop(AF_INET6, (const void *)GET_IPV6_DST_ADDR(p), dstip, sizeof(dstip));
 
-        fprintf(aft->file_ctx->fp, "%s  [**] [%" PRIu32 ":%" PRIu32 ":%" PRIu32 "] %s [**] [Classification: %s] [Priority: %" PRIu32 "] {%" PRIu32 "} %s:%" PRIu32 " -> %s:%" PRIu32 " ",
+        fprintf(aft->file_ctx->fp, "%s  [**] [%" PRIu32 ":%" PRIu32 ":%" PRIu32 "] %s [**] [Classification: %s] [Priority: %" PRIu32 "] {%" PRIu32 "} %s:%" PRIu32 " -> %s:%" PRIu32 "",
                 timebuf, pa->gid, pa->sid, pa->rev, pa->msg, pa->class_msg, pa->prio, IPV6_GET_L4PROTO(p), srcip, p->sp, dstip, p->dp);
 
         if(pa->references != NULL)  {
+            fprintf(aft->file_ctx->fp," ");
             for (ref = pa->references; ref != NULL; ref = ref->next)   {
                 fprintf(aft->file_ctx->fp,"[Xref => %s%s]", ref->key, ref->reference);
             }