user input for the idle timeout, Weston enters an inactive mode. The
screen fades to black, and depending on the shell in use, a screensaver
may activate, monitors may switch off, and the shell may lock the session.
+A value of 0 effectively disables the timeout.
.TP
\fB\-\-log\fR=\fIfile.log\fR
Append log messages to the file