documentation: clarify gtk_icon_theme_add_builtin_icon() usage

https://bugzilla.gnome.org/show_bug.cgi?id=726135

diff --git a/gtk/gtkicontheme.c b/gtk/gtkicontheme.c
index 9131006d808cd93d3887564c2cf60ae0fad101e3..0eb44bd41664deb8df2567dec0b7b1a8214fd2fb 100644 (file)
--- a/gtk/gtkicontheme.c
+++ b/gtk/gtkicontheme.c
@@ -5066,7 +5066,7 @@ gtk_icon_info_get_display_name (GtkIconInfo *icon_info)
 /**
  * gtk_icon_theme_add_builtin_icon:
  * @icon_name: the name of the icon to register
- * @size: the size at which to register the icon (different
+ * @size: the size in pixels at which to register the icon (different
  *        images can be registered for the same icon name
  *        at different sizes.)
  * @pixbuf: #GdkPixbuf that contains the image to use