Bug#589693: glib triggers: Error opening directory '/usr/share/glib-2.0/schemas': No such file or directory

[Jonathan Nieder]

Package: libglib2.0-0
Version: 2.25.11-3
Severity: minor
Justification: cosmetic

Recently when upgrading packages that are not glib, I have been getting
a mysterious message; for example:

 (Reading database ... 109822 files and directories currently installed.)
 Removing x11proto-render-dev ...
 Processing triggers for menu ...
 Processing triggers for man-db ...
 Processing triggers for fontconfig ...
 Processing triggers for install-info ...
 Processing triggers for python-support ...
 Processing triggers for libglib2.0-0 ...
 Error opening directory '/usr/share/glib-2.0/schemas': No such file or directory

Indeed, there is not even a /usr/share/glib-2.0 directory.

Is this important?  If not, can the message be suppressed?

$ dpkg -l | egrep 'gtk|glib'
ii  evince-gtk                    2.30.3-1    Document (postscript, 
ii  glibc-doc                     2.11.2-2    Embedded GNU C Library
rc  gtk-doc-tools                 1.15-2      the GTK+ documentation
ii  libavahi-glib1                0.6.26-1    Avahi glib integration
ii  libcanberra-gtk-module        0.24-1      translates Gtk+ widget
ii  libcanberra-gtk0              0.24-1      Gtk+ helper for playin
ii  libdbus-glib-1-2              0.86-1      simple interprocess me
ii  libglib-perl                  1:1.230-1   interface to the GLib 
ii  libglib2.0-0                  2.25.11-3   The GLib library of C 
ii  libglib2.0-0-dbg              2.25.11-3   The GLib libraries and
ii  libglib2.0-data               2.25.11-3   Common files for GLib 
ii  libglibmm-2.4-1c2a            2.24.2-1    C++ wrapper for the GL
ii  libgtk2-perl                  1:1.230-1   Perl interface to the 
ii  libgtk2.0-0                   2.21.2-1    The GTK+ graphical use
ii  libgtk2.0-0-dbg               2.21.2-1    The GTK+ libraries and
ii  libgtk2.0-bin                 2.21.2-1    The programs for the G
ii  libgtk2.0-common              2.21.2-1    Common files for the G
ii  libgtkmm-2.4-1c2a             1:2.20.3-1  C++ wrappers for GTK+ 
ii  libjson-glib-1.0-0            0.10.2-2    GLib JSON manipulation
ii  libpoppler-glib4              0.12.4-1    PDF rendering library 
ii  libpulse-mainloop-glib0       0.9.21-3    PulseAudio client libr
ii  libupower-glib1               0.9.5-1     abstraction for power 
ii  python-gtk2                   2.17.0-2    Python bindings for th