Check that the dropped during initialization message appears in
local and remote log files.

If file descriptors are exhausted during initialization, we see
better log messages on the console now.

Check that non existing log files in syslog.conf are reported to
/dev/console during startup and restart. Startup warnings contain
the pid now. Console logging creates additional errors if the file
descriptor limit is exhausted.

Syslogd's debug and error messages have changed a bit, adapt test.

Test logging to console by redirecting the system's console into a
file. All subtests get an additional /dev/console entry in
syslog.conf, then check that messages appear in the console file.
Add a test that stops syslogd, calls sendsyslog2() with LOG_CONS
and checks that the message appears in the console file.

Test syslogd logging to a tty which belongs to a user. This is
done with a utmp entry for a pty fake login. All messages are read
from the pty and written into a log file.

Use Socket to make Perl syntax check of single test files pass.

Test what happens when syslogd reaches its file descriptor limit
and cannot accept TCP connections anymore.