Get script working on evercran's "pre" image for before 0.49

[gaborcsardi]

I believe that you can use the containers at https://github.com/r-hub/evercran to include earlier R versions, if you'd like.

Although, you'll probably need to update the code for this, as ls() in the earlier versions does not have an all.names argument. And the earliest versions don't even support packages...

[hughjonesd]

Damn, that's cool. I just need to decide to waste some time on this.

[hughjonesd]

Now getting back to 0.62.3.

Btw you might be interested in hughjonesd/r-help for online documentation of earlier versions.

[gaborcsardi]

Nice!