[glibmm] Code style change.

[Murray Cumming <murrayc src gnome org>]

commit 23d631cac63995ff83cb8e063988af981f1b5f70
Author: Murray Cumming <murrayc murrayc com>
Date:   Fri Apr 1 10:04:10 2011 +0200

    Code style change.

 examples/dbus/peer.cc |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/examples/dbus/peer.cc b/examples/dbus/peer.cc
index 99cdb66..55b8128 100644
--- a/examples/dbus/peer.cc
+++ b/examples/dbus/peer.cc
@@ -189,7 +189,7 @@ bool on_new_connection(const Glib::RefPtr<Gio::DBus::Connection>& connection)
   return true;
 }
 
-void run_as_server(Glib::ustring address, bool allow_anonymous)
+void run_as_server(const Glib::ustring& address, bool allow_anonymous)
 {
   Glib::ustring guid = Gio::DBus::generate_guid();
   Gio::DBus::ServerFlags flags = Gio::DBus::SERVER_FLAGS_NONE;
@@ -221,7 +221,7 @@ void run_as_server(Glib::ustring address, bool allow_anonymous)
   loop->run();
 }
 
-void run_as_client(Glib::ustring address)
+void run_as_client(const Glib::ustring& address)
 {
   Glib::RefPtr<Gio::DBus::Connection> connection;