Ticket 48805 - Sign comparison checks.
Description: commit 3e7d6d62f3b2889d0250cb0a3892982e42ada878
introduced a compiler warnng in dbscan.c.
- warning: format ‘%d’ expects argument of type ‘int’, but argument 2
has type ‘size_t {aka long unsigned int}’
Reviewed by nhosoi (one line commit rule)