[libadwaita] status-page: Fix a parameter name

[Alexander Mikhaylenko <alexm src gnome org>]

commit 905c3c4e27eabc94bcbe281e73bb2add5afd8e04
Author: Adrien Plazas <kekun plazas laposte net>
Date:   Thu Oct 21 13:32:04 2021 +0200

    status-page: Fix a parameter name
    
    This fixes a build-time warning.

 src/adw-status-page.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/src/adw-status-page.c b/src/adw-status-page.c
index 4b94677b..b7260b3a 100644
--- a/src/adw-status-page.c
+++ b/src/adw-status-page.c
@@ -391,7 +391,7 @@ adw_status_page_get_paintable (AdwStatusPage *self)
 /**
  * adw_status_page_set_paintable: (attributes org.gtk.Method.set_property=paintable)
  * @self: a `AdwStatusPage`
- * @icon: (nullable): the icon
+ * @paintable: (nullable): the paintable
  *
  * Sets the paintable for @self.
  *