This package exports methods for GRAPH to generate dot(1) files.
Copyright Pascal J. Bourguignon 2003 - 2012
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero General Public License as published by
the Free Software Foundation, either version 3 of the License, or
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RETURN: A string containing the ident with the dash removed.
RETURN: a string containing the dot file contents for the GRAPH.