/usr/share/lintian/overrides/libecm0-dev is in libecm0-dev 6.4.4+ds-5.
This file is owned by root:root, with mode 0o644.
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1 2 | # Breaks appears too weak during upgrade tests with piuparts(1)
libecm0-dev: conflicts-with-version libecm-dev (<= 6.4.4-2)
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