gio: Fix various typos of the name ‘D-Bus’

This introduces no functional changes.

Signed-off-by: Philip Withnall <pwithnall@endlessos.org>

gio/gapplicationcommandline.c

@@ -523,7 +523,7 @@ g_application_command_line_get_options_dict (GApplicationCommandLine *cmdline)
  * The #GInputStream can be used to read data passed to the standard
  * input of the invoking process.
  * This doesn't work on all platforms.  Presently, it is only available
- * on UNIX when using a DBus daemon capable of passing file descriptors.
+ * on UNIX when using a D-Bus daemon capable of passing file descriptors.
  * If stdin is not available then %NULL will be returned.  In the
  * future, support may be expanded to other platforms.
  *

gio/gapplicationimpl-dbus.c

@@ -43,7 +43,7 @@
 #include "gunixfdlist.h"
 #endif
 
-/* DBus Interface definition {{{1 */
+/* D-Bus Interface definition {{{1 */
 
 /* For documentation of these interfaces, see
  * https://wiki.gnome.org/Projects/GLib/GApplication/DBusAPI
@@ -640,7 +640,7 @@ g_application_impl_register (GApplication        *application,
 
   /* We are non-primary.  Try to get the primary's list of actions.
    * This also serves as a mechanism to ensure that the primary exists
-   * (ie: DBus service files installed correctly, etc).
+   * (ie: D-Bus service files installed correctly, etc).
    */
   actions = g_dbus_action_group_get (impl->session_bus, impl->bus_name, impl->object_path);
   if (!g_dbus_action_group_sync (actions, cancellable, error))

gio/gdbusserver.c

@@ -71,7 +71,7 @@
  * To just export an object on a well-known name on a message bus, such as the
  * session or system bus, you should instead use g_bus_own_name().
  *
- * An example of peer-to-peer communication with G-DBus can be found
+ * An example of peer-to-peer communication with GDBus can be found
  * in [gdbus-example-peer.c](https://git.gnome.org/browse/glib/tree/gio/tests/gdbus-example-peer.c).
  *
  * Note that a minimal #GDBusServer will accept connections from any