lprintf(9, "old_msgnum: %ld\n", old_msgnum);
if (atol(dav_ifmatch) != old_msgnum) {
wprintf("HTTP/1.1 412 Precondition Failed\r\n");
- lprintf(9, "HTTP/1.1 412 Precondition Failed\r\n");
+ lprintf(9, "HTTP/1.1 412 Precondition Failed (ifmatch=%ld, old_msgnum=%ld)\r\n",
+ atol(dav_ifmatch), old_msgnum);
groupdav_common_headers();
wprintf("Content-Length: 0\r\n\r\n");
return;