This is a part of the rsyslog.conf documentation.

Lines

Lines can be continued by specifying a backslash ("\") as the last character of the line. There is a hard-coded maximum line length of 4K.
If you need lines larger than that, you need to change compile-time settings inside rsyslog and recompile.

[manual index] [rsyslog.conf] [rsyslog site]

This documentation is part of the rsyslog project.
Copyright © 2008-2010 by Rainer Gerhards and Adiscon. Released under the GNU GPL version 3 or higher.