[glibmm] docs: Make Doxygen silent

[Sebastian Geiger <segeiger src gnome org>]

commit 3a7eddc02e492e6787e2e7bcefaa80c533fed009
Author: Sebastian Geiger <sbastig gmx net>
Date:   Sun Jul 17 21:37:55 2016 +0200

    docs: Make Doxygen silent
    
    https://bugzilla.gnome.org/show_bug.cgi?id=768797

 docs/reference/Doxyfile.in |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/docs/reference/Doxyfile.in b/docs/reference/Doxyfile.in
index a31544e..51dec03 100644
--- a/docs/reference/Doxyfile.in
+++ b/docs/reference/Doxyfile.in
@@ -101,7 +101,7 @@ CITE_BIB_FILES         =
 #---------------------------------------------------------------------------
 # Configuration options related to warning and progress messages
 #---------------------------------------------------------------------------
-QUIET                  = NO
+QUIET                  = YES
 WARNINGS               = YES
 WARN_IF_UNDOCUMENTED   = YES
 WARN_IF_DOC_ERROR      = YES