[gtk/ebassi/gidocgen] docs: Fix property annotation

[Emmanuele Bassi <ebassi src gnome org>]

commit f28f2e1e5bfd671a51f38ec3dd66f9c04adeeb71
Author: Emmanuele Bassi <ebassi gnome org>
Date:   Mon Feb 22 14:52:40 2021 +0000

    docs: Fix property annotation

 gtk/gtkentry.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/gtk/gtkentry.c b/gtk/gtkentry.c
index d9f74667d8..7c1be458dd 100644
--- a/gtk/gtkentry.c
+++ b/gtk/gtkentry.c
@@ -526,7 +526,7 @@ gtk_entry_class_init (GtkEntryClass *class)
                             GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY);
 
   /**
-   * GtkEntry:invisible=char:
+   * GtkEntry:invisible-char:
    *
    * The character to use when masking entry contents (“password mode”).
    */