mtree(8) specfile), compare the "post write/copy" mtime against the
actual "pre write/copy" mtime instead of the mtime from the specfile.
This prevents warnings such as:
pax: File ./foo was modified during copy to archive
if the file's mtime in the file system is different to what's in the specfile.
(The resultant file will still get the specfile mtime ...)
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