Original git history was removed

[XVilka]

Could be grafted from radare2-bindings:

• https://git.wiki.kernel.org/index.php/GraftPoint
• https://blog.developer.atlassian.com/grafting-earlier-history-with-git/
• https://stackoverflow.com/questions/47928855/how-do-i-combine-several-git-repositories-without-breaking-file-history

[XVilka]

Fixed, see https://github.com/radareorg/radare2-rlang/commits/master