[gimp] libgimpwidgets: fix annotation.

[Jehan <jehanp src gnome org>]

commit a198b5a948b28f0ee99210aa42f296f4edfcfd6b
Author: Jehan <jehan girinstud io>
Date:   Wed Jul 31 01:53:55 2019 +0200

    libgimpwidgets: fix annotation.
    
    Fixes:
    > Warning: Gimp: missing ":" at column 36:

 libgimpwidgets/gimpdialog.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)
---
diff --git a/libgimpwidgets/gimpdialog.c b/libgimpwidgets/gimpdialog.c
index 4b2c02df70..1b2dc4c12a 100644
--- a/libgimpwidgets/gimpdialog.c
+++ b/libgimpwidgets/gimpdialog.c
@@ -674,9 +674,9 @@ gimp_dialog_run (GimpDialog *dialog)
 
 /**
  * gimp_dialog_set_alternative_button_order_from_array:
- * @dialog:                         The #GimpDialog
- * @n_buttons:                      The size of @order
- * @order: (array length=n_buttons) array of buttons' response ids.
+ * @dialog:                          The #GimpDialog
+ * @n_buttons:                       The size of @order
+ * @order: (array length=n_buttons): array of buttons' response ids.
  *
  * Reorder @dialog's buttons if "gtk-alternative-button-order" setting
  * is set to TRUE. This is mostly a wrapper around the GTK function