Bug#679645: devscripts: debuild does not properly forward coloured output

[Martin-Éric Racine]

Package: devscripts
Version: 2.17.1
Followup-For: Bug #679645

Except that 'debuild' very much is run from CLI.  Basically, if dpkg-buildpackage finds the terminal and enables colors accordingly, there is no reason for debuild to fail at finding the terminal and asking dpkg to run in colorized mode.

-- Package-specific info:

--- /etc/devscripts.conf ---

--- ~/.devscripts ---
DEBSIGN_KEYID=C4B4D7B6
DEBUILD_DPKG_BUILDPACKAGE_OPTS=

-- System Information:
Debian Release: 9.0
  APT prefers unstable
  APT policy: (800, 'unstable')
Architecture: i386 (x86_64)

Kernel: Linux 3.16.0-4-amd64 (SMP w/8 CPU cores)
Locale: LANG=fi_FI.UTF-8, LC_CTYPE=fi_FI.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: unable to detect

Versions of packages devscripts depends on:
ii  dpkg-dev     1.18.22
ii  libc6        2.24-9
ii  perl         5.24.1-1
pn  python3:any  <none>

Versions of packages devscripts recommends:
ii  apt                         1.4~rc2
ii  at                          3.1.20-3
ii  curl                        7.52.1-3
ii  dctrl-tools                 2.24-2
pn  debian-keyring              <none>
ii  dput                        0.12.0
ii  equivs                      2.0.9+nmu1
ii  fakeroot                    1.21-3.1
ii  file                        1:5.29-3
ii  gnupg                       2.1.18-6
ii  gnupg2                      2.1.18-6
ii  libdistro-info-perl         0.14
ii  libdpkg-perl                1.18.22
ii  libencode-locale-perl       1.05-1
ii  libgit-wrapper-perl         0.047-1
ii  liblist-compare-perl        0.53-1
ii  liblwp-protocol-https-perl  6.06-2
ii  libsoap-lite-perl           1.20-1
ii  liburi-perl                 1.71-1
ii  libwww-perl                 6.15-1
ii  licensecheck                3.0.29-1
ii  lintian                     2.5.50.1
ii  man-db                      2.7.6.1-2
ii  patch                       2.7.5-1
ii  patchutils                  0.3.4-2
ii  python3-debian              0.1.30
ii  python3-magic               1:5.29-3
ii  sensible-utils              0.0.9
ii  strace                      4.15-2
ii  unzip                       6.0-21
ii  wdiff                       1.2.2-2
ii  xz-utils                    5.2.2-1.2

Versions of packages devscripts suggests:
pn  adequate                     <none>
pn  autopkgtest                  <none>
pn  bls-standalone               <none>
pn  bsd-mailx | mailx            <none>
ii  build-essential              12.3
pn  check-all-the-things         <none>
pn  cvs-buildpackage             <none>
pn  devscripts-el                <none>
pn  diffoscope                   <none>
pn  disorderfs                   <none>
pn  dose-extra                   <none>
pn  duck                         <none>
pn  faketime                     <none>
pn  gnuplot                      <none>
ii  gpgv                         2.1.18-6
pn  how-can-i-help               <none>
ii  libauthen-sasl-perl          2.1600-1
pn  libfile-desktopentry-perl    <none>
pn  libnet-smtps-perl            <none>
pn  libterm-size-perl            <none>
ii  libtimedate-perl             2.3000-2
pn  libyaml-syck-perl            <none>
pn  mozilla-devscripts           <none>
pn  mutt                         <none>
ii  openssh-client [ssh-client]  1:7.4p1-6
pn  piuparts                     <none>
pn  ratt                         <none>
pn  reprotest                    <none>
pn  svn-buildpackage             <none>
pn  w3m                          <none>

-- no debconf information