[gtk/ebassi/annotations: 2/4] Add missing separator

[Emmanuele Bassi <ebassi src gnome org>]

commit c3a90b76d0e50332840708b3ece959110fdf5fa0
Author: Emmanuele Bassi <ebassi gnome org>
Date:   Sun May 31 15:05:59 2020 +0100

    Add missing separator
    
    An annotation is separated from the description by a ':'.

 gtk/gtkcolumnviewcolumn.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/gtk/gtkcolumnviewcolumn.c b/gtk/gtkcolumnviewcolumn.c
index de240b0d4e..7785a43c37 100644
--- a/gtk/gtkcolumnviewcolumn.c
+++ b/gtk/gtkcolumnviewcolumn.c
@@ -567,7 +567,7 @@ gtk_column_view_column_set_title (GtkColumnViewColumn *self,
  *
  * Returns the title set with gtk_column_view_column_set_title().
  *
- * Returns: (nullable) The column's title
+ * Returns: (nullable): The column's title
  */
 const char *
 gtk_column_view_column_get_title (GtkColumnViewColumn *self)