message: Update upload.rs
  Added actual KV size to upload error message
diff: @@ -110,15 +110,17 @@ pub fn validate_file_uploads(pairs: Vec<KeyValuePair>) -> Result<(), failure::Er
  for pair in pairs {
  if pair.key.len() > KEY_MAX_SIZE {
  failure::bail!(
  - "Path `{}` exceeds the maximum key size limit of {} bytes",
  + "Path `{}` of {} bytes exceeds the maximum key size limit of {} bytes",
  pair.key,
  + pair.key.len(),
  KEY_MAX_SIZE
  );
  }
  if pair.value.len() > VALUE_MAX_SIZE {
  failure::bail!(
  - "File `{}` exceeds the maximum value size limit of {} bytes",
  + "File `{}` of {} bytes exceeds the maximum value size limit of {} bytes",
  pair.key,
  + pair.key.len(),
  VALUE_MAX_SIZE
  );
  }
  