scrubcsv: now with null value removal

This is part of our series on data science because it belongs in your toolchain. Happy Null Removal!

The latest version of scrubcsv has built-in null value removal:

$ cat a.csv
name,breed,age
jerry,beagle,n/a
tater,null,1

$ scrubcsv -n 'null|n/a' a.csv
name,breed,age
jerry,beagle,
tater,,1

See how null and n/a went away?

Get the latest version with

$ cargo install scrubcsv -f