file reports incorrect bug reporting location

=== System information ===

    $ lsb_release -rd
    Description: Ubuntu 16.04.5 LTS
    Release: 16.04

    $ apt policy file
    file:
      Installed: 1:5.25-2ubuntu1.1
      Candidate: 1:5.25-2ubuntu1.1
      Version table:
     *** 1:5.25-2ubuntu1.1 500
            500 http://mirror.atlantic.net/ubuntu xenial-updates/main amd64 Packages
            500 http://mirror.atlantic.net/ubuntu xenial-security/main amd64 Packages
            100 /var/lib/dpkg/status
         1:5.25-2ubuntu1 500
            500 http://mirror.atlantic.net/ubuntu xenial/main amd64 Packages

=== Problem ===

The `man` page and `--help` output for `file` both give an incorrect bug reporting location:

    $ /usr/bin/file --help | tail -2

    Report bugs to http://bugs.gw.com/

    $ man 1 file | fgrep -A 2 BUGS
    BUGS
         Please report bugs and send patches to the bug tracker at http://bugs.gw.com/ or the mailing list at ⟨<email address hidden>⟩ (visit http://mx.gw.com/mailman/listinfo/file first to subscribe).

As can be seen quite quickly by visiting the site, http://bugs.gw.com/ is defunct. The correct location according to the GitHub mirror of the `file` repository (at https://github.com/file/file#readme) is:

    Mailing List: <email address hidden>
    Mailing List archives: http://mailman.astron.com/pipermail/file/
    Bug tracker: http://bugs.astron.com/
    E-mail: <email address hidden>
    Build Status: https://travis-ci.org/file/file

=== Solution ===

1. Please backport the fix to the `man` page located at the commit https://github.com/file/file/commit/5d6eba6f3281887de8263fdc481daabc98007945
2. Please correct address at bottom of `file --help` output (located here in the source tree: https://github.com/file/file/blob/master/src/file.c#L643-L661)
2. If you know how to submit a patch, they don't accept GitHub pull requests, but the upstream bug report for `file --help` output is at https://bugs.astron.com/view.php?id=33

ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: file 1:5.25-2ubuntu1.1
ProcVersionSignature: Ubuntu 4.15.0-33.36~16.04.1-generic 4.15.18
Uname: Linux 4.15.0-33-generic x86_64
ApportVersion: 2.20.1-0ubuntu2.18
Architecture: amd64
CurrentDesktop: Unity
Date: Tue Aug 28 10:39:47 2018
Dependencies:
 gcc-6-base 6.0.1-0ubuntu1
 libc6 2.23-0ubuntu10
 libgcc1 1:6.0.1-0ubuntu1
 libmagic1 1:5.25-2ubuntu1.1
 zlib1g 1:1.2.8.dfsg-2ubuntu4.1
DistributionChannelDescriptor:
 # This is a distribution channel descriptor
 # For more information see http://wiki.ubuntu.com/DistributionChannelDescriptor
 canonical-oem-somerville-xenial-amd64-20160624-2
EcryptfsInUse: Yes
InstallationDate: Installed on 2016-11-01 (665 days ago)
InstallationMedia: Ubuntu 16.04 "Xenial" - Build amd64 LIVE Binary 20160624-10:47
SourcePackage: file
UpgradeStatus: No upgrade log present (probably fresh install)