+.de IQ
+. br
+. ns
+. IP "\\$1"
+..
.SS "VLOG COMMANDS"
These commands manage \fB\*(PN\fR's logging settings.
.IP "\fBvlog/set\fR [\fIspec\fR]"
\fBsyslog\fR, \fBconsole\fR, or \fBfile\fR, to limit the log level
change to only to the system log, to the console, or to a file,
respectively.
+.IP
+On Windows platform, \fBsyslog\fR is accepted as a word and is only
+useful along with the \fB\-\-syslog\-target\fR option (the word has no
+effect otherwise).
.
.IP \(bu
\fBoff\fR, \fBemer\fR, \fBerr\fR, \fBwarn\fR, \fBinfo\fR, or
.IP
This has no effect unless \fB\*(PN\fR was invoked with the
\fB\-\-log\-file\fR option.
+.
+.IP "\fBvlog/disable\-rate\-limit \fR[\fImodule\fR]..."
+.IQ "\fBvlog/enable\-rate\-limit \fR[\fImodule\fR]..."
+By default, \fB\*(PN\fR limits the rate at which certain messages can
+be logged. When a message would appear more frequently than the
+limit, it is suppressed. This saves disk space, makes logs easier to
+read, and speeds up execution, but occasionally troubleshooting
+requires more detail. Therefore, \fBvlog/disable\-rate\-limit\fR
+allows rate limits to be disabled at the level of an individual log
+module. Specify one or more module names, as displayed by the
+\fBvlog/list\fR command. Specifying either no module names at all or
+the keyword \fBany\fR disables rate limits for every log module.
+.
+.IP
+The \fBvlog/enable\-rate\-limit\fR command, whose syntax is the same
+as \fBvlog/disable\-rate\-limit\fR, can be used to re-enable a rate
+limit that was previously disabled.