shred: with -u, unlink file even if it is zero length

function                                             old     new   delta
shred_main                                           391     387      -4

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

coreutils/shred.c

@@ -99,13 +99,13 @@ int shred_main(int argc UNUSED_PARAM, char **argv)
 				bb_copyfd_size(zero_fd, fd, size);
 				fdatasync(fd);
 			}
+		}
 		if (opt & OPT_u) {
 			ftruncate(fd, 0);
 			xunlink(fname);
 		}
 		xclose(fd);
 	}
-	}
 
 	return EXIT_SUCCESS;
 }