This option of the list command specifies how the entries 
int the results tree should be printed.

The option has one argument which specifies how one entry should be printed. This is 
a string concatenated from replacement tags and additional characters.
Replacement tags are enclosed in %%. The following replacement tags
are specified:

* spname: Denotes the name of the simulation parameter

* value: Denotes the value of the simulation parameter

* dirname: Denotes the name of the node directory

* content: Specifies a string describing what the node contains. This is meaningful
   for leaf nodes only

* fullcontent: Same as content but also adds information about batch or drop
   result files

* indent: Indent the line to make a proper column view.

* command_addspp: Print the SimTree command to create the simulation parameter
  path contained in the resuls tree. This is useful to make a backup copy
  of the results tree structure or to duplicate an existing results tree.

The format string is parsed for each simulation parameter contained in the
node and the content is printed according to the name/value of the simulation
parameters.

The content, fullcontent, indent, dirname and command_addspp tags are
expanded only once for each node whereas the spname and value tags are
interpreted for each simulation parameter.

Add " around the format string to prevent wrong interpretation and to
allow adding spaces at the begin and the end of the format.
