All reports of malformed-md5sums-control-file for the archive. The extended description of this tag is:
The indicated line of the md5sums control file for this package was malformed. Each line of an md5sums control file should contain an MD5 checksum, some whitespace, and then the path to the file corresponding to that checksum.
This tag has not been emitted in any package tested by Lintian.