purpose of "fontforge -dry"

Can you tell me what the "-dry" command-line option to FontForge is
supposed to do?  I found this in the code; it seems to set a flag that is
passed into the native-script interpreter (only - not Python) and causes
it to disable some, though not all, of its functions.  The only mention of
it I can find in documentation is this Changelog entry from 2005:

   Werner suggests a --dry <scriptfile> argument which does syntax
   checking without actually executing the script. I think it is trivial.

-- 
Matthew Skala
[email protected]                 People before principles.
http://ansuz.sooke.bc.ca/

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