File packet_generator.patch of Package netfpga

--- NF2/projects/packet_generator/sw/packet_generator.pl	2009-01-20 17:26:12.000000000 -0800
+++ ./packet_generator.pl	2009-01-23 14:32:52.000000000 -0800
@@ -29,7 +29,7 @@
 use Time::HiRes qw[usleep];
 
 require "reg_defines.ph";
-require $ENV{'NF2_DESIGN_DIR'} . '/lib/Perl5/reg_defines_packet_generator.ph';
+require 'reg_defines_packet_generator.ph';
 
 
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