root-split about hep

[sbinet]

thanks for the report.

I actually had fixed that in c6ebf25.

let me tag a new version (v0.32.0).

in the meantime, this works:

$> go install -v go-hep.org/x/hep/groot/cmd/root-split@535619c2
$> $HOME/go/bin/root-split -v
Usage: root-split [options] file.root

ex:
 $> root-split -o out.root -n 10 ./testdata/chain.flat.1.root

options:
  -n int
    	number of events to split into (default 100)
  -o string
    	path to output ROOT files (default "out.root")
  -t string
    	input tree name to split (default "tree")
  -v	enable verbose mode
root-split: missing input file

[sbinet]

done:

https://go-hep.org/news/release-0.32.0/

apologies for the delay (I wanted to update Gonum/{gonum,plot} to their latest Go-1.19-compatible version)