--savetiddler command is deprecated in favour of the new, more flexible
Saves an individual tiddler in its raw text or binary format to the specified filename.
--savetiddler <title> <filename>
By default, the filename is resolved relative to the
output subdirectory of the edition directory. The
--output command can be used to direct output to a different directory.
Any missing directories in the path to the filename are automatically created.