Snippets for log4cplus 2.2.1 from FreeBSD 151amd64

Sourced from https://pkg-status.freebsd.org/beefy23/data/latest-per-pkg/log4cplus/2.2.1/151amd64-default.log.

• /usr/include/sys/timeb.h:41:2: warning: "this file includes <sys/timeb.h> which is deprecated" [-W#warnings]
     41 | #warning "this file includes <sys/timeb.h> which is deprecated"
        |  ^