In English version it's as
https://bugs.launchpad.net/ubuntu/+source/man-db/+bug/1422425
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https://bugs.launchpad.net/bugs/1426682
Title:
package man-db 2.7.0.2-5 failed to
Public bug reported:
do-release-upgrade -d
from 14.10
ProblemType: Package
DistroRelease: Ubuntu 15.04
Package: man-db 2.7.0.2-5
ProcVersionSignature: Ubuntu 3.18.0-13.14-generic 3.18.5
Uname: Linux 3.18.0-13-generic x86_64
ApportVersion: 2.16.1-0ubuntu2
Architecture: amd64
Date: Sat Feb 28