Update encode.js

truncate volume name, possibly foolhardy. Inspired by this: LinusU#7

Author: phoebejaffe

lib/encode.js

@@ -35,8 +35,7 @@ module.exports = exports = function (info) {
   assert(type === 0 || type === 1, 'Type is valid')
   buf.writeUInt16BE(type, 8)
 
-  var volNameLength = info.volume.name.length
-  assert(volNameLength <= 27, 'Volume name is not longer than 27 chars')
+  var volNameLength = info.volume.name.slice(0,27).length
   buf.writeUInt8(volNameLength, 10)
   buf.fill(0, 11, 11 + 27)
   buf.write(info.volume.name, 11, 'utf8')