Debug spew to stderr at startup

[jimav]

gnome-terminal writes debug messages to stderr every time it starts up:

# _g_io_module_get_default: Found default implementation gvfs (GDaemonVfs) for ‘gio-vfs’
# _g_io_module_get_default: Found default implementation dconf (DConfSettingsBackend) for ‘gsettings-backend’
# watch_fast: "/org/gnome/terminal/legacy/" (establishing: 0, active: 0)
# unwatch_fast: "/org/gnome/terminal/legacy/" (active: 0, establishing: 1)
# watch_established: "/org/gnome/terminal/legacy/" (establishing: 0)

This pollutes the terminal when a script explicitly invokes gnome-terminal to open another window.

STEPS TO REPRODUCE:

1. Open a terminal and type "gnome-terminal"

RESULTS: Debug messages appear on the first terminal

EXPECTED RESULTS: Nothing should appear on stderr or stdout of gnome-terminal itself, unless there is an actual error.

P.S. Presumably a debug build escaped and was released. To prevent this from happening, it would be a good idea to add a test which checks that gnome-terminal writes nothing to std* in normal (non-error) cases.

ProblemType: Bug
DistroRelease: Ubuntu 19.10
Package: gnome-terminal 3.34.0-1ubuntu2
ProcVersionSignature: Ubuntu 5.3.0-19.20-generic 5.3.1
Uname: Linux 5.3.0-19-generic x86_64
ApportVersion: 2.20.11-0ubuntu8
Architecture: amd64
CurrentDesktop: ubuntu:GNOME
Date: Wed Nov 6 10:03:24 2019
InstallationDate: Installed on 2019-02-06 (273 days ago)
InstallationMedia: Ubuntu 18.10 "Cosmic Cuttlefish" - Release amd64 (20181017.3)
SourcePackage: gnome-terminal
UpgradeStatus: Upgraded to eoan on 2019-10-25 (11 days ago)

[Sebastien Bacher (seb128)]

Thank you for your bug report, that should be reported upstream on gitlab.gnome.org though

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.