Avoid warning about unused variable
Fix for https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1041236
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/debian/patches/0002-Ignore-mismatching-versions-of-libs.patch: Ensure the 'warnings' variable is still used as the return value, which avoids a ruby warning
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/debian/patches/0002-deactivate-reader_blocking-test.patch (no functional changes, but comments updated after exporting the revised patch queue)