benchmarks are hard to run on Ubuntu

[benibela]

Describe the bug
Benchmarks do not run

To Reproduce
Steps to reproduce the behavior:

1. Issued pxi command.

$ make

2. Error thrown or unexpected behavior.

for ((i=1546300800;i<=1577836799;i++)); do printf '{"time":%d}\n' $i >> data/2019-small.jsonl; done
  /bin/sh: 1: Syntax error: Bad for loop variable

here /bin/sh is dash not bash

/usr/bin/time -lp pxi 'json => json.time' < data/2019-small.jsonl > /tmp/pxi.jsonl
/usr/bin/time: invalid option -- 'l'

pxi < /tmp/mlr.jsonl | diff --brief --report-identical-files - /tmp/pxi.jsonl
Files - and /tmp/pxi.jsonl differ
make: *** [Makefile:132: json-3-mlr] Error 1

Expected behavior

Benchmarks

Desktop (please complete the following information):

• OS: KUbuntu 19.04
• Version (pxi --version): github

[Yord]

Hi benibela,

thanks for the bug report! I must admit, the benchmarks are only really tested on MacOS at this point. This is definitely something I am planning to change, and soon. Your report shows, this should be further up on my list of priorities.

I am getting back to this issue soon.

Cheers
Yord