[gtk] Trivial: Remove a few +'s

[Matthias Clasen <matthiasc src gnome org>]

commit 68f2cd1f09a60bdf002d8bc3ceae116ca1ed4443
Author: Matthias Clasen <mclasen redhat com>
Date:   Sun May 19 15:29:04 2019 +0000

    Trivial: Remove a few +'s

 gtk/gtkapplication.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/gtk/gtkapplication.c b/gtk/gtkapplication.c
index 9b992f686d..5d8ca76a15 100644
--- a/gtk/gtkapplication.c
+++ b/gtk/gtkapplication.c
@@ -57,7 +57,7 @@
  * of a GTK+ application in a convenient fashion, without enforcing
  * a one-size-fits-all application model.
  *
- * Currently, GtkApplication handles GTK+ initialization, application
+ * Currently, GtkApplication handles GTK initialization, application
  * uniqueness, session management, provides some basic scriptability and
  * desktop shell integration by exporting actions and menus and manages a
  * list of toplevel windows whose life-cycle is automatically tied to the
@@ -128,7 +128,7 @@
  *
  * ## See Also ## {#seealso}
  * [HowDoI: Using GtkApplication](https://wiki.gnome.org/HowDoI/GtkApplication),
- * [Getting Started with GTK+: 
Basics](https://developer.gnome.org/gtk3/stable/gtk-getting-started.html#id-1.2.3.3)
+ * [Getting Started with GTK: 
Basics](https://developer.gnome.org/gtk3/stable/gtk-getting-started.html#id-1.2.3.3)
  */
 
 enum {