this script i put it beside the dojo and dijit directories, i used it to remove new lines from javascript files in all the dojo project, recursively

dojo optimizer.php

<?php
function explore( $path ){
	$files = scandir( $path );
	$files = array_slice( $files, 2);
	foreach( $files as $file )
		if( is_dir( $path.'/'.$file ) )
			explore( $path.'/'.$file );
		else
			process( $path.'/'.$file );
}

function process( $file ){
	if( substr( $file, strlen($file)-3 )=='.js' )
	{
		echo $file."\n";
		$text = file_get_contents( $file );
		$text = str_replace( array("\r\n", "\n", "\r"), "", $text );
		file_put_contents( $file, $text );
	}
}
// directories to process
explore('dojo');
explore('dijit');