Fix libssl-dev installation error on Ruby <= 2.3 and ubuntu-16.04
Fix libssl-dev installation error on Ruby <= 2.3 and ubuntu-16.04

```
The following packages have unmet dependencies:
 libssl-dev : Depends: libssl1.0.0 (= 1.0.2g-1ubuntu4) but 1.0.2g-1ubuntu4.19 is to be installed
E: Unable to correct problems, you have held broken packages.
```
1.0.2g-1ubuntu4 is wrong package name for amd64.
https://packages.ubuntu.com/xenial/libssl-dev

emsk/romajic,emsk/romajic,emsk/romajic