Bug#349616: lintian: wrongly states that there is no dependency for debconf using settitle

[Bartosz Fenski aka fEnIo <fenio@debian.org>]

Package: lintian
Version: 1.23.15
Severity: normal

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Hello.

(fenio@lapik)~/test/dibbler$lintian -i dibbler_0.4.1-8_i386.changes
E: dibbler-server: settitle-requires-versioned-depends config
N:
N:   Debconf only supports the SETTITLE command as of version 1.3.22. To
N:   ensure upgrades work correctly, packages that use this new command
N:   should declare a dependency on that version of debconf.
N:
E: dibbler-relay: settitle-requires-versioned-depends config
E: dibbler-client: settitle-requires-versioned-depends config
E: dibbler-client: settitle-requires-versioned-depends postinst
(fenio@lapik)~/test/dibbler$

Lintian states that there should be dependency information when someone
uses settitle command which is good. But:

(fenio@lapik)~/test/dibbler$dpkg --info dibbler-client_0.4.1-8_i386.deb | grep Depends
 Depends: libc6 (>= 2.3.5-1), libgcc1 (>= 1:4.0.2), libstdc++6 (>= 4.0.2-4), debconf (>= 1.3.22) | debconf-2.0
(fenio@lapik)~/test/dibbler$

As you can see there is correct dependency for debconf, so I suppose that
lintian complains due to lack of dependency for debconf-2.0. Seems that
debconf-2.0 has settitle feature since always, at least that's what I think
after fast look at its changelog.

It's also not possible to use 1.3.22 version dependency for debconf-2.0
cause cdebconf which provides it has version 0.95.

This check should be probably improved to allow | cdebconf-2.0.

regards
fEnIo

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