Lintian tag information: malformed-override (type: error)

Description (from lintian-explain-tags)

Lintian discovered an override entry with an invalid format. An override
entry should have the format:

[[<package>][ <archlist>][ <type>]:] <tag>[ <extra> ...]

where <package> is the package name, <archlist> is an architecture list,
<type> specifies the package type (binary is the default), <tag> is the
tag to override, and <extra> is any specific information for the
particular tag to override.

Please refer to Format of override files (Section 2.4.1) in the Lintian
User's Manual for details.

Visibility: error
Show-Always: yes
Check: debian/lintian-overrides/malformed

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