File History  
 
             key:    flHstry     
             type: (s)*
             
 
                  -  (s)*: file history descriptions
             
 
  Description 
This chunk gives a history of the creation and filtering of a file.  Each
program that creates or modifies a file should leave a short description
of what actions it took in the file history chunk.  By convention this 
should consist of
a string giving the complete command line for the program followed by 
optionaladditional comments in additional strings.  A file should 
contain only one
file history chunk and each filter should append its description after all
the existing strings in the chunk.  The file history chunk should be at
the top level and preferably at the end of the file.
 Example 
  flHstry
    "makeboxes -a 12 boxes.mdla"
    "triangulate boxes.mdla tris.mdla"
    "trianglestrip tris.mdla tris.str.mdla"
    "created 98 triangle strips with average length of 7"
  end