Appender: RemoteSyslogAppender, semicolon persist if identity value is an empty string

Filename: RemolteSyslogAppender.cs
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// Identity
if (m_identity != null)
{
m_identity.Format(writer, loggingEvent);
}
Else
{
writer.Write(loggingEvent.Domain);
}
writer.Write(": "); <------------------------------- ALWAYS include semicolon, even if identity is an empty string.