This package uses quilt to patch the upstream source.
You can find some info on how to generate the patched source, add a new
modification, and remove an existing modification on:
/usr/share/doc/quilt/README.source
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To package a new upstream release, you can use the Makefile:
svn://svn.debian.org/svn/pkg-shadow/debian/trunk/Makefile
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A testsuite is also available. Instruction on how to run this testsuite
are available on:
svn://svn.debian.org/svn/pkg-shadow/debian/trunk/tests/README
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