[gtk+] stack switcher: fix typos in documentation comment

[Cosimo Cecchi <cosimoc src gnome org>]

commit 8a66e685a69891de9d01e75cf1024beb71cc5701
Author: Cosimo Cecchi <cosimoc gnome org>
Date:   Sun Nov 15 14:11:48 2015 -0800

    stack switcher: fix typos in documentation comment

 gtk/gtkstackswitcher.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/gtk/gtkstackswitcher.c b/gtk/gtkstackswitcher.c
index 226ec9e..99a0dd3 100644
--- a/gtk/gtkstackswitcher.c
+++ b/gtk/gtkstackswitcher.c
@@ -45,8 +45,8 @@
  *
  * # CSS nodes
  *
- * GtkStackSwitcher has a single CSS node names stackswitcher and
- * style class .sidebar.
+ * GtkStackSwitcher has a single CSS node named stackswitcher and
+ * style class .stack-switcher.
  *
  * When circumstances require it, GtkStackSwitcher adds the
  * .needs-attention style class to the widgets representing the