Migration process breaks double byte characters

[HirokazuNishi]

Please see attached 2 images. One is M1, and the other is M2.
I created one product on M1 with double byte characters, and executed migration process.
After it completed, I checked product data on M2. Its attributes data with double byte characters are broken.

Can't this tool use for double byte characters?
Of course I can use double byte characters for products or any other data on M2 via cli or admin panel.

[dgoyachev]

Have same issue - russian letters breaks while importing 1.9.2.1 -> 2.0.0

[HirokazuNishi]

I made PR #28.
It was caused by missing option parameters for mysql connection.