[glom/gtkmm4v4] configure: Use glibmm-2.54 doxgen tags, not the glibmm-2.52 ones.

[Murray Cumming <murrayc src gnome org>]

commit 97fa4ab4b402aa613cae4a88b69a2dda13496219
Author: Murray Cumming <murrayc murrayc com>
Date:   Sat Apr 15 21:29:28 2017 +0200

    configure: Use glibmm-2.54 doxgen tags, not the glibmm-2.52 ones.

 configure.ac |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index 9085716..3b1aa7c 100644
--- a/configure.ac
+++ b/configure.ac
@@ -323,7 +323,7 @@ AS_IF([test "x$ENABLE_DOCUMENTATION" != xno],
 MM_ARG_ENABLE_DOCUMENTATION
 MM_ARG_WITH_TAGFILE_DOC([libstdc++.tag], [mm-common-libstdc++])
 MM_ARG_WITH_TAGFILE_DOC([libsigc++-3.0.tag], [sigc++-3.0])
-MM_ARG_WITH_TAGFILE_DOC([glibmm-2.52.tag], [glibmm-2.52])
+MM_ARG_WITH_TAGFILE_DOC([glibmm-2.54.tag], [glibmm-2.54])
 MM_ARG_WITH_TAGFILE_DOC([cairomm-1.16.tag], [cairomm-1.16])
 MM_ARG_WITH_TAGFILE_DOC([pangomm-2.42.tag], [pangomm-2.42])