Bug#779675: lintian: Add flag --list-tags that will list all tags Lintian knows about

[Rajendra Gokhale <rvg@cloudera.com>]

Package: lintian
Version: 2.5.6ubuntu0.1
Severity: wishlist

Dear Maintainer,
*** Please consider answering these questions, where appropriate ***

I would like to avoid having to maintain multiple 

If I ask Lintian to suppress a tag that is known to a later version of Lintian 
but not known to the current version it will exit with an error.  This can
be problematic in an environment where a package gets built on different
versions of OSes running different versions of Lintian (potentially).

Having a --list-tags option will allow me to take a set of tags I have and 
create a new set that consists exclusively of tags known to the current
version of Lintian so that I do not need to maintain a separate list of 
override tags for each platform I run lintian on

There could be other uses to for this option

*** End of the template - remove these lines ***


-- System Information:
Debian Release: wheezy/sid
  APT prefers precise-updates
  APT policy: (500, 'precise-updates'), (500, 'precise-security'), (500, 'precise'), (100, 'precise-backports')
Architecture: amd64 (x86_64)

Kernel: Linux 3.2.0-23-generic (SMP w/4 CPU cores)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash

Versions of packages lintian depends on:
ii  binutils                       2.22-6ubuntu1.2
ii  bzip2                          1.0.6-1
ii  diffstat                       1.54-1
ii  file                           5.09-2ubuntu0.6
ii  gettext                        0.18.1.1-5ubuntu3
ii  intltool-debian                0.35.0+20060710.1
ii  libapt-pkg-perl                0.1.25build2
ii  libc-bin                       2.15-0ubuntu10.11
ii  libclass-accessor-perl         0.34-1
ii  libclone-perl                  0.31-1build3
ii  libdpkg-perl                   1.16.1.2ubuntu7.5
ii  libemail-valid-perl            0.185-1
ii  libipc-run-perl                0.90-1
ii  libparse-debianchangelog-perl  1.2.0-1ubuntu1
ii  libtimedate-perl               1.2000-1
ii  liburi-perl                    1.59-1
ii  locales                        2.13+git20120306-3
ii  man-db                         2.6.1-2
ii  patchutils                     0.3.2-1.1
ii  perl [libdigest-sha-perl]      5.14.2-6ubuntu2
ii  unzip                          6.0-4ubuntu1

lintian recommends no packages.

Versions of packages lintian suggests:
ii  binutils-multiarch     <none>
ii  dpkg-dev               1.16.1.2ubuntu7.5
ii  libhtml-parser-perl    3.69-1build1
ii  libtext-template-perl  <none>
ii  man-db                 2.6.1-2
ii  xz-utils               5.1.1alpha+20110809-3

-- no debconf information