nibbles.js matchingNibbleLength potential error

[Vladimir Yudin]

merkle-patricia-tree/src/util/nibbles.js

Line 45 in 768eac1

 while (nib1[i] === nib2[i] && nib1.length > i) { 

There is a potential error.
The length of nib2 is not checked.

[Vladimir Yudin]

I'm sorry. On JS this will work correctly.