[Rpm-maint] [rpm-software-management/rpm] Examine Compressed Headers (Issue #2220)

[Daniel Alley]

I ran the script against all the RPMs in RHEL 9 baseos + appstream repos.  Results:

> [dalley at thinkpad devel]$ python compressed_header_test.py repos/rhel9-combined-pkgs/Packages/
> Results for 10644 packages
> Average header size as proportion of package total: 1.97%
> Average header savings with LZ4 compression: 53.02%
> Average header savings with ZSTD compression: 70.65%
> Average total savings with LZ4 compressed headers: 1.05%
> Average total savings with ZSTD compressed headers: 1.40%



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