Renamed a variable

src/record_iterator.rs

@@ -15,18 +15,18 @@ impl<'a> RecordIterator<'a> {
         // Get the total number of records
         let total_records = r701.get_total_record_count()?;
 
+        // Calculate the sequence number on which the last record resides and
+        // the position of the first useless byte
+        let sequence_number = total_records * 12 / 1024;
+        let first_useless_byte_index = (total_records * 12 % 1024) as usize;
+
         // The endpoint expects the first block of records to be sent first
         r701.get_record_bytes(total_records, 0)?;
 
-        // Calculate the sequence number of the last record and the position of
-        // the last useful byte
-        let sequence_number = total_records * 12 / 1024;
-        let last_byte = (total_records * 12 % 1024) as usize;
-
         // Get the last records and cut out all the trailing `ff` bytes
         let input_buffer = r701
             .get_record_bytes(total_records, sequence_number)?
-            .drain(..last_byte)
+            .drain(..first_useless_byte_index)
             .collect::<Vec<u8>>();
 
         // Return a new Iterator