[balsa] address-book: Ensure gboolean values are Boolean

[Peter Bloomfield <peterb src gnome org>]

commit c31bd968bd210965f5a5f8411846911e3f9b5279
Author: Peter Bloomfield <PeterBloomfield bellsouth net>
Date:   Wed Jun 5 19:27:06 2019 -0400

    address-book: Ensure gboolean values are Boolean

 libbalsa/address-book.c | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)
---
diff --git a/libbalsa/address-book.c b/libbalsa/address-book.c
index e12429b8e..956e83e09 100644
--- a/libbalsa/address-book.c
+++ b/libbalsa/address-book.c
@@ -386,7 +386,7 @@ libbalsa_address_book_set_is_expensive(LibBalsaAddressBook *ab, gboolean is_expe
 
     g_return_if_fail(LIBBALSA_IS_ADDRESS_BOOK(ab));
 
-    priv->is_expensive = is_expensive;
+    priv->is_expensive = !!is_expensive;
 }
 
 void
@@ -396,7 +396,7 @@ libbalsa_address_book_set_expand_aliases(LibBalsaAddressBook *ab, gboolean expan
 
     g_return_if_fail(LIBBALSA_IS_ADDRESS_BOOK(ab));
 
-    priv->expand_aliases = expand_aliases;
+    priv->expand_aliases = !!expand_aliases;
 }
 
 void
@@ -406,6 +406,5 @@ libbalsa_address_book_set_dist_list_mode(LibBalsaAddressBook *ab, gboolean dist_
 
     g_return_if_fail(LIBBALSA_IS_ADDRESS_BOOK(ab));
 
-    priv->dist_list_mode = dist_list_mode;
+    priv->dist_list_mode = !!dist_list_mode;
 }
-