fixed error log spam of: uninitialized value  in string at upload.cgi line 384
fixed error log spam of: uninitialized value  in string at upload.cgi line 384

wilke/MG-RAST,MG-RAST/MG-RAST,wilke/MG-RAST,paczian/MG-RAST,MG-RAST/MG-RAST,wilke/MG-RAST,wilke/MG-RAST,wilke/MG-RAST,MG-RAST/MG-RAST,MG-RAST/MG-RAST,teharrison/MG-RAST,paczian/MG-RAST,wilke/MG-RAST,paczian/MG-RAST,MG-RAST/MG-RAST,paczian/MG-RAST,teharrison/MG-RAST,wilke/MG-RAST,teharrison/MG-RAST,paczian/MG-RAST,paczian/MG-RAST,teharrison/MG-RAST,teharrison/MG-RAST,teharrison/MG-RAST