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From: hiro <23hiro@gmail.com>
Date: Fri, 11 Jan 2019 11:28:34 +0100
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Subject: Re: [9front] bug in sed
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X-Bullshit: self-healing enhancement injection SQL over JSON lifecycle rich-client layer 

the main problem is that his testcase sucks. it hasn't been minimized

Also his code shows different output on 9front.
But I experimented myself a bit and found a minimal testcase that
still shows what might create confusion:

cpu% echo '     x'  > test
cpu% sed 's/^  //g' test
 x