autoscripts/prerm-{py3,pypy}clean: Use sed instead of perl

Using perl in maintscripts is problematic because Perl may no longer be installed in the future by the time the user purges the Python packages that use dh-python.

The specific use of perl in these prerm maintscripts can be easily replaced with an equivalent sed invocation.

I had no idea sed could do that. Won't be quite as robust in the face of quotation marks, but probably good enough.

added 2 commits

• f2f2b38c - 1 commit from branch python-team/tools:master
• e21b65b8 - autoscripts/prerm-{py3,pypy}clean: Use sed instead of perl

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merged

Thanks for merging this. Actually I was about to send an update MR that relies on xargs: faster (rm calls gets batched) and "looks safer" because xargs takes care of properly handing the paths. However the last point should moot because dpkg-provided paths are going to be quite safe (plenty of other scripts would fail on them if they weren't).

I'd be happy to apply that.