code: protected CommandLine getDotCommandLine(Set<String> generatedFiles)
  			throws MojoExecutionException {
  		CommandLine cl = new CommandLine(command);
  		if (isVerbose()) {
  			cl.addArgument("-v");
  		}
  		cl.addArgument("-Tpng");
  		cl.addArgument("-O");
  		for (String generatedFile : generatedFiles) {
  			if (generatedFile.endsWith(".dot")) {
  				cl.addArgument(generatedFile);
  			}
  		}
  		if (isVerbose()) {
  			getLog().info("Commandline: " + cl);
  		}
  		return cl;
  	}
docs: Builds command line for starting the <code>dot</code>.
  
  @param generatedFiles
  list of generated files from the
  {@link AbstractGeneratorMojo#statusFile}