[dia] docs: change zoom_pair struct

[Zander <zbrown src gnome org>]

commit 28812c409f44ea355ec1f138ecee28c968c58705
Author: Zander Brown <zbrown gnome org>
Date:   Sun May 3 12:53:43 2020 +0100

    docs: change zoom_pair struct
    
    Maybe fix https://gitlab.gnome.org/GNOME/dia/-/issues/426

 app/menus.h | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)
---
diff --git a/app/menus.h b/app/menus.h
index 0b94a69a..9fdc75be 100644
--- a/app/menus.h
+++ b/app/menus.h
@@ -27,7 +27,10 @@ G_BEGIN_DECLS
 #define INTEGRATED_MENU "/IntegratedUIMenu"
 #define INVISIBLE_MENU "/InvisibleMenu"
 
-struct zoom_pair { const char *string; const int value; };
+struct zoom_pair {
+  const char *string;
+  const int   value;
+};
 
 extern const struct zoom_pair zooms[10];