Be verbose. Use more than one -v for greater effect.
.TP
\fB\-o\fR, \fB\-\-output\fR \fIfilename\fR
- Write output to file \fIfilename\fR.
+ Write output to file \fIfilename\fR. (If not given, the output will go
+ to a file called "output.swf")
.TP
\fB\-V\fR, \fB\-\-version\fR
Print version info and exit