Patch_list should be a file(containing info of patches) not a directory
Format of patchlist.txt
Code:
//this will extract patch1.gpf into the data folder 1 FLD patch1.gpf //here, patch2.gpf will be mergegd with grf_file 2 GRF patch2.gpf //You can also delete files from the data folder. 3 FLD datafilenametodelete.xml* //Deleting files inside a GRF archive is still supported 4 GRF datai_will_delete_you.txt*