[glib] meson: fix typo in install path for gobject_gdb.py

[Christoph Reiter <creiter src gnome org>]

commit fbf35113093e79c8c80f44ade21b5e8a338fe9b2
Author: Christoph Reiter <creiter src gnome org>
Date:   Sun Jul 16 00:18:43 2017 +0200

    meson: fix typo in install path for gobject_gdb.py

 gobject/meson.build |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/gobject/meson.build b/gobject/meson.build
index ed5ca66..0e5cc43 100644
--- a/gobject/meson.build
+++ b/gobject/meson.build
@@ -95,7 +95,7 @@ glib_genmarshal = configure_file(input : 'glib-genmarshal.in',
   install : true,
   install_dir : 'bin', configuration : glib_genmarshal_conf)
 
-install_data('gobject_gdb.py', install_dir : join_paths(glib_pkgdatadir + 'gdb'))
+install_data('gobject_gdb.py', install_dir : join_paths(glib_pkgdatadir, 'gdb'))
 gdb_conf = configuration_data()
 gdb_conf.set('datadir', glib_datadir)
 configure_file(