Backport str2lang()?

[maurolepore]

The function str2lang() was released in R 3.6.0 so the package fail for users of R < 3.6.0. You can see this on CI (notice the workflow fails with ubuntu and R 3.5.0).

https://github.com/r-lib/backports#backports-for-r-versions-prior-to-360

I'm not familiar with that funciton so not sure how easy/hard is to
re-implement. Alternatively we could backport it with the backports
package: https://github.com/r-lib/backports#in-packages

[cpiponiot]

Ok, I'll change the function back to parse

[gonzalezeb]

issue solved