bio/bss_log.c: on DJGPP syslog facility is part of sockets library.
bio/bss_log.c: on DJGPP syslog facility is part of sockets library.

In other words no-sock DJGPP build should suppress syslogging.

Reviewed-by: Rich Salz <c04971a99e5a9ee80eaab4b1deb37e845b0bd697@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/5708)

openssl/openssl,openssl/openssl,openssl/openssl,openssl/openssl,openssl/openssl,openssl/openssl