[balsa] Stop using GSlice; it may go away

[Peter Bloomfield <peterb src gnome org>]

commit f9b7f772277e62c17340ee8e19cd366b3d18a643
Author: Peter Bloomfield <PeterBloomfield bellsouth net>
Date:   Fri Dec 14 10:03:44 2018 -0600

    Stop using GSlice; it may go away
    
    * libbalsa/mailbox.c (libbalsa_mailbox_search_iter_new): use
      g_new(), not g_slice_new();
      (libbalsa_mailbox_search_iter_unref): use g_free(), not
      g_slice_free().

 ChangeLog          | 9 +++++++++
 libbalsa/mailbox.c | 4 ++--
 2 files changed, 11 insertions(+), 2 deletions(-)
---
diff --git a/ChangeLog b/ChangeLog
index d6bfd8aaa..6bf1134bb 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,12 @@
+2018-12-14  Peter Bloomfield  <pbloomfield bellsouth net>
+
+       Stop using GSlice; it may go away
+
+       * libbalsa/mailbox.c (libbalsa_mailbox_search_iter_new): use
+       g_new(), not g_slice_new();
+       (libbalsa_mailbox_search_iter_unref): use g_free(), not
+       g_slice_free().
+
 2018-12-13  Albrecht Dreß  <albrecht dress arcor de>
 
        Replace readdir() by g_dir_read_name()
diff --git a/libbalsa/mailbox.c b/libbalsa/mailbox.c
index 1d74bfd49..564347a46 100644
--- a/libbalsa/mailbox.c
+++ b/libbalsa/mailbox.c
@@ -1676,7 +1676,7 @@ libbalsa_mailbox_search_iter_new(LibBalsaCondition * condition)
     if (!condition)
         return NULL;
 
-    iter = g_slice_new(LibBalsaMailboxSearchIter);
+    iter = g_new(LibBalsaMailboxSearchIter, 1);
     iter->mailbox = NULL;
     iter->stamp = 0;
     iter->condition = libbalsa_condition_ref(condition);
@@ -1721,7 +1721,7 @@ libbalsa_mailbox_search_iter_unref(LibBalsaMailboxSearchIter * search_iter)
         LIBBALSA_MAILBOX_GET_CLASS(mailbox)->search_iter_free(search_iter);
 
     libbalsa_condition_unref(search_iter->condition);
-    g_slice_free(LibBalsaMailboxSearchIter, search_iter);
+    g_free(search_iter);
 }
 
 /* GNode iterators; they return the root node when they run out of nodes,