Ticket #48899 - Values of dbcachetries/dbcachehits in cn=monitor could overflow.
Description: The internal variable cache_tries is declared as u_int32_t.
The values provided from Berkeley DB are typed as uintmax_t, which has
64 bit width. Since cache_tries stores the sum of st_cache_miss and
mpstat->st_cache_hit, the type should be also uintmax_t so that the
overflow problem is solved.
https://fedorahosted.org/389/ticket/48899
Reviewed by mreynolds@redhat.com (Thank you, Mark!!)