Relax test regex, read or write error is possible.

With TLS 1.2 the step by step handshake created precise error
conditions. TLS 1.3 shortens the handshake, so some errors cannot
be reported properly to the other side. Instead the connection is
closed and the other side receives a SIGPIPE when it tries to write
the next TLS protocol message. Ignore this SIGPIPE signal in TLS
client and server and adapt error messages when grepping the log
files.
discussed with tb@ and jsing@

In the sendsyslog-dropped test the client has to write a log message
before syslogd is running. To fix a race in regress, delay the
syslogd startup until the message has been written. For debugging
add the process class to all die messages.

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

Test that syslogd does not append white spaces to messages. Per
default the test pattern is stricter now. Also do some test cleanup

Error messages form libtls have changed, adapt syslogd tests.

Add syslogd tests for dropped messages.

Add regression tests for syslog over TLS.

With TLS 1.2 the step by step handshake created precise error
conditions. TLS 1.3 shortens the handshake, so some errors cannot
be reported properly to the other side. Instead the connection is
closed and the other side receives a SIGPIPE when it tries to write
the next TLS protocol message. Ignore this SIGPIPE signal in TLS
client and server and adapt error messages when grepping the log
files.
discussed with tb@ and jsing@

In the sendsyslog-dropped test the client has to write a log message
before syslogd is running. To fix a race in regress, delay the
syslogd startup until the message has been written. For debugging
add the process class to all die messages.

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

Test that syslogd does not append white spaces to messages. Per
default the test pattern is stricter now. Also do some test cleanup

Error messages form libtls have changed, adapt syslogd tests.

Add syslogd tests for dropped messages.

Add regression tests for syslog over TLS.

In the sendsyslog-dropped test the client has to write a log message
before syslogd is running. To fix a race in regress, delay the
syslogd startup until the message has been written. For debugging
add the process class to all die messages.

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

Test that syslogd does not append white spaces to messages. Per
default the test pattern is stricter now. Also do some test cleanup

Error messages form libtls have changed, adapt syslogd tests.

Add syslogd tests for dropped messages.

Add regression tests for syslog over TLS.

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

Test that syslogd does not append white spaces to messages. Per
default the test pattern is stricter now. Also do some test cleanup

Error messages form libtls have changed, adapt syslogd tests.

Add syslogd tests for dropped messages.

Add regression tests for syslog over TLS.