42     fprintf(stderr,  in usage()
52         fprintf(stderr, "\nerrno: %d. Failed to get free disk space on %s\n",  in get_free_space()
90             fprintf(stderr, "\nerrno: %d. Failed to create %s\n", errno, file_path);  in create_unique_file()
97                 fprintf(stderr, "\nerrno: %d. Failed to write %lu bytes to %s\n",  in create_unique_file()
107             fprintf(stderr, "\nerrno: %d. Failed to write last %lu bytes to %s\n",  in create_unique_file()
115         fprintf(stderr, "\nFailed to close %s\n", file_path);  in create_unique_file()
133         fprintf(stderr, "\nerrno: %d. Failed to create %s\n", errno, dir);  in create_unique_dir()
160     fprintf(stderr, "\n");  in puncture_fs()
162         fprintf(stderr, "\rSTAGE 1/2: %d%% Complete",  in puncture_fs()
189     fprintf(stderr, "\rSTAGE 1/2: 100%% Complete\n");  in puncture_fs()
190     fprintf(stderr, "\rSTAGE 2/2: 0%% Complete");  in puncture_fs()
195         fprintf(stderr, "\nFailed to delete %s\n", rm_bin_argv[2]);  in puncture_fs()
198     fprintf(stderr, "\rSTAGE 2/2: 100%% Complete\n");  in puncture_fs()
236         fprintf(stderr, "\nExpected path name after options.\n");  in main()
243         fprintf(stderr, "\nUnexpected argument: %s\n", argv[optind]);  in main()
249     fprintf(stderr, "\nRandom seed is: %d\n", seed);  in main()
256         fprintf(stderr, "\nInvalid sizes: total available size should be "  in main()